Forests and their conservation - class-VIII
Description: forests and their conservation | |
Number of Questions: 88 | |
Created by: Supriya Thakkar | |
Tags: biotic resources: natural vegetation and wildlife natural vegetation and communities dependent on forest geography natural vegetation and animals in india natural vegetation and wildlife |
Tick the correct answer.
Mangrove forests can thrive in _______.
-
saline water
-
fresh water
-
polluted water
-
none of these
Saline water,
State weather these sentences are true (T) or false (F).
Thorny bushes are found in dry areas of the country.
-
True
-
False
-
Confierous trees
-
Deciduous trees
-
Shrubs
-
None of these
In tropical evergreen forest, one of the common animals is ________.
-
Monkey
-
Giraffe
-
Camel
-
None of these
Monkey
Choose the correct option to complete the statements given below:
Sundarbans is in _______.
-
Andaman and Nicobar Island
-
West Bengal
-
Orissa
-
Madhya Pradesh
Mangrove forests are found mainly in Sunderbans in West Bengal and in the Andaman and Nicobar Islands. Sundari is a well-known species of trees in mangrove forests after which Sunderbans have been named.
Steppe grassland is found in __________.
-
S. Africa
-
Australia
-
Central Asia
-
None of these
Central Asia,
One important variety of tree in coniferous forest is ________.
-
Rosewood
-
Pine
-
Teak
-
None of these
Pine,
Tick the correct answer.
Mahogany and rosewood trees are found in ______.
-
mangrove forests
-
tropical deciduous forests
-
tropical evergreen forests
-
none of these
Tropical evergreen forest,
To which one of the following types of vegetation does rubber belong?
-
Tundra
-
Tidal
-
Himalayan
-
Tropical Evergreen
Some of the commercially important trees of tropical rain forests are ebony, mahogany, rosewood, rubber and cinchona.
Cinchona trees are found in the areas of rainfall more than _________.
-
100 cm
-
50 cm
-
70 cm
-
less than 50 cm
Cinchona is a genus of flowering plant mostly used as medicinal plant because of the quinones present in it. These are found in the areas where the rainfall is above 100 cm. They are native to the tropical Andean forests of western South America.
Mahagony, ebony and green heart are the trees in _____________.
-
Coniferous forests.
-
Evergreen forests.
-
Monsoon forests.
-
All of these
A _____________ is a dense, scrub like vegetation characterized by dry subtropical and temperate areas.
-
Thorn forest
-
Deciduous forest
-
Mountain forest
-
None of these
Which of the following forests are most economical for India?
-
Tropical deciduous
-
Tropical wet evergreen
-
Thorn forests
-
Tidal forests
Sundarbans of eastern India is an example of___________.
-
marine Ecosystem
-
grassland Ecosystem
-
forest Ecosystem
-
mangrove Ecosystem
World's maximum newsprint comes from ______________.
-
Monsoon forest
-
Mangrove forest
-
Deciduous forest
-
Rainfed forest
Name the Indian forests containing upper canopy.
-
Tropical deciduous forests
-
Mangrove forests
-
Tropical evergreen forests
-
Thorny forests
Which one of the following is not essentially a species of the Himalaya vegetation?
-
Juniper
-
Mahogany
-
Silver fir
-
Spruce
Mahogany is not essentially a species of the Himalaya vegetation. Mahogany is a species of tree found throughout the Caribbean, central and South America not in Himalayas.
Teak wood is found in which of the following forests?
-
Evergreen
-
Tidal
-
Deciduous
-
Montane
- Teak wood is moderately hard, teak is
durable and fire-resistant. It can be easily seasoned and worked. It takes up a
good polish and is not attacked by white ants
- It is among the most valuable timber
trees of the world.
- It is a deciduous tree and it is found
in tropical deciduous forests.
Mahagony, ebony and green heart are the trees in _______________.
-
Coniferous forests
-
Evergreen forests
-
Monsoon forests
-
All of these
The region receives high isolation and moisture throughout the year which are primary requirements of any vegetation, so due to the abundance of these elements, very dense thick and high vegetation is found.
Vegetation species are Mahogany, Ebony and green heart, cabinet wood and dyewood.
The Thorn and Shrub forests are found in the state of __________.
-
West Bengal.
-
Kerala.
-
Orissa.
-
Rajasthan
The Thorn Forests and Scrubs are found in regions where the rainfall is less than 70cm. The vegetation in these forests are thorny trees and bushes. The Thorn Forests are found in the semi-arid areas of Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh and Haryana.
The Tropical Deciduous forest is also known as _______.
-
Monsoon forest
-
Tidal forest.
-
Temperate forest
-
Tundra forest.
The tropical deciduous forests are also called monsoon forest because the trees in these forests shed their leaves during dry season and re-grow during monsoon.
The most dominant species of trees found in the tropical deciduous forests is ________.
-
Sal
-
Rosewood
-
Teak
-
Deodar
Tropical Deciduous forest receives rainfall between ________.
-
70cm to 100cm.
-
100cm to 200cm.
-
60cm to 100cm
-
50cm.
The most dominant species of the tropical deciduous forest is _________.
-
Bamboos.
-
Teak
-
Shisham
-
Sandalwood.
Tropical deciduous forests are also known as "Monsoon" forests. These forests are found in the regions which receive the annual rainfall between 200 cm and 70 cm.
Montane forests are found in ________.
-
Ganga-Brahmaputra delta.
-
North-east India.
-
Eastern slope of western ghats.
-
Eastern ghats.
North-East India,
The percentage of mangrove forest is _________.
-
less than 1%
-
less than 3%
-
less than 2%
-
less than 4%
Recent data available from State of Forest Report 2011 of the Forest Survey of India, Dehra Dun shows that mangrove cover in the country is 4,662.56 sq.km, which is 0.14 percent of the country's total geographical area.
Cinchona trees are found in the _______.
-
Equatorial climate
-
Mediterranean climate
-
Monsoon climate
-
Taiga climate
My stems are succulent, my leaves are mostly thick. In which category of the following vegetation type I am largely found?
-
Tropical deciduous forest
-
Montane forest
-
Tropical thorn forest and scrubs
-
Mangrove forest
Tropical thorn forests and scrubs are found in the regions with less than 70cm of rainfall. The natural vegetation consists of thorny trees and bushes. Trees are scattered and have long roots penetrating deep into the soil to get moisture. The stems are succulent to conserve water. Leaves are mostly thick and small to minimize evaporation.
Natural vegetation of a region depends mainly on climate and hence there are distinctive areas of different types of vegetation. The governing factors in general are temperature and precipitation. Accordingly, pine forests in India are found in _______.
-
The Sunderbans
-
The Thar desert
-
The Himalayas
-
The Ganga plain
Cinchona trees are found in the areas of rainfall more than ______.
-
100 cm
-
20 cm
-
170 cm
-
less than 50 cm
-
None of these
Which one of the following states is famous for sandal wood ?
-
Andhra Pradesh
-
Kerala
-
Karnataka
-
Tamil Nadu
Karnataka,
Railway coaches are made from _________.
-
Shisham
-
Deodar
-
Teak
-
Pine
- Deodar gives
yellowish brown wood. These trees are usually found in Himalayas, Punjab and
Uttar Pradesh. It is the most important timber tree providing very soft wood.
- It is used for making cheap
furniture, railway carriages, railway sleepers, packing boxes, etc.
The dominant vegetation type of India is ________.
-
Tropical deciduous type
-
Equatorial type
-
Mangrove forest
-
Xerophytic vegetation
The indian deciduous forests are the most abundantly found among all the different types of forests in india . The indian deciduous are found in a range of landscape from the plains to the hills .
Mangrove forests grow in ________.
-
Saline water
-
River water
-
Deserts
-
Mountains
- Mangrove forests comprise of
small shrubs or trees that grow in coastal saline or brackish waters. These
shrubs or trees can withstand high salinity conditions.
- Mangrove forests of Sunderbans are largest mangrove forests of the world. Sundarbans are located in Ganga-Brahmaputra
delta of West Bengal and Bangladesh.
Thorny bushes are found in __________________.
-
Hot and humid tropical climate
-
Hot and dry desertic climate
-
Cold polar climate
-
None of these
Thorny bushes are found in dry and hot subtropical areas with seasonal rainfall as low as 500 millimeters.The rainfall is very low and therefore these areas are usually deserts. The bushes shed their leaves seasonally to avoid loss of water.
The forest type occurring in lower regions near the equator and tropics is ______.
-
Softwood coniferous forest
-
Temperate deciduous forest
-
Tropical evergreen forest
-
Alpine forest
- Tropical evergreen forests are the
forests consisting of evergreen trees with green foliage throughout year. These
are tropical forests.
- They constitute 7% of earth’s dry
land area and 2% of total surface. Such forest give shelter to 50% of world’s
species.
What is the other name of tropical deciduous forests?
-
Monsoon Forests
-
Temperate deciduous forests
-
Tropical rainforests
-
None of these
What is the other name of tropical evergreen forests?
-
Temperate rainforests
-
Deciduous
-
Tropical rainforests
-
None of these
Tropical evergreen forests are closed canopy forests growing within 28 degrees north or south of the equator. Since they receive more than 200 cm rainfall per year, therefore they are also known as rain-forests
Anaconda, one of the world's largest snakes, is found in _____.
-
Lowland forests
-
Tropical rainforest
-
Coniferous forests
-
None of these
In tropical evergreen forest, one of the common animals is.
-
Monkey
-
Girraffe
-
Camel
-
Donkey
The monkeys tend to live in forest regions where they have lots of trees around them. Other than tropical evergreen forests,they are also abundant in mangrove forests,Savannahs and mountain regions
The finest cricket bats are made from the wood of the trees known as __________.
-
billow
-
seesam
-
willow
-
none of these
Kashimiri willows are known for their finest quality bats. Most of them are of international standards and are used by prominent cricketers worldwide. This willow was brought in India by British
Wood of softwood evergreen trees is very useful for making pulp, which is used for manufacturing.
-
silk and wool
-
meat and curd
-
clothes and tyres
-
paper and newsprint
Softwoods are cheaper and easier to work with than hardwoods. They are mainly used for- pulp for paper, durable home woodwork, and construction timbers.
Mahogany and rosewood trees are found in ________________.
-
mangrove forests
-
tropical deciduous forests
-
tropical evergreen forests
-
temperate deciduous forests
Tropical evergreen forest,
Match list I (Forest types) with list II (Type of trees):
A. Tropical Evergreen | I. * Oak, pine, eucalyptus |
---|---|
B. Temperate Evergreen | II. Oak, ash, beech |
C. Tropical Deciduous | III. Rosewood, ebony, mahogany |
D. Temperate Deciduous | IV. Sal, teak, shisham |
-
(A-II), (B-IV), (C-Ill), (D-I)
-
(A-IV), (B-II), (C-I), (D-Ill)
-
(A-I), (B-Ill), (C-II), (D-IV)
-
(A-Ill), (B-1), (C-IV), (D-II)
Tropical evergreen - Rosewood, ebony, mahogany - Hardwood trees.
_______________ and __________ are trees found in the Sunderbans.
-
Sundari, Mangrove
-
Sundari, Sea forest
-
Mangrove, Sea forest
-
None of the above
- Mangrove forest comprises of
small shrubs or trees that grown in coastal saline or brackish waters. These
shrubs or trees can withstand high salinity conditions. One of the example is
Sundari tree after which name Sundarbans was given to this forests.
- Mangrove forests of Sundarbans
are largest mangrove forests of the world. Sundarbans are located in Ganga-Brahmaputra
delta of west Bengal and Bangladesh.
Tropical rain forests are found in the areas where rainfall is between __________.
-
200 cm to 70 cm
-
Between 200 and 100 cm
-
200 cm and above
-
Between 100 cm and 70 cm
- Tropical rain forests can be
considered as hot and wet forests. Mean monthly temperatures exceed 18 °C
and average annual rainfall is above 200 cms.
- Tropical rainforests exhibit
high levels of biodiversity. Around 40% to 75% of all biotic species are indigenous to the rainforests.
- These forests are found in
Andaman and Nicobar Islands and Western Ghats. A part of these forests are also
found in Odisha state.
How many plant species are found in India?
-
About 45,000
-
About 40,000
-
About 47,000
-
About 20,000
India has 10 biogeographical zones and has 6 types of natural habitats. Over 47,000 species of plants and 89,000 species of animals have been recorded in India.
Regions such as Southeastern Brazil, Southwestern Africa, Myanmar and Bangladesh consists of _____.
-
Tropical monsoon forests
-
Tropical rainforests
-
Coniferous rainforests
-
Temperate deciduous forests
Tropical Monsoon forests are located in the monsoon climate beyond the equatorial region between 10°C and 25°C and North and South of the equator. The countries are along the coastal regions of Bangladesh, Myanmar, Southwestern Africa, Southeastern Brazil, Srilanka.
Silver Fir is found in _____ type of vegetation.
-
Mangrove forests
-
Montane forests
-
Tropical Deciduous forests
-
Tropical Evergreen forests
Silver Fir is found in Montane Forests. Montane Forests have a succession of natural vegetation belts in the same order from the tropical to the Tundra region. Between 1500 and 3000 metres, temperature forests contains coniferous tress like pine, deodar, silver fir.
Cinchona, rubber, mahogany, ebony are important trees of____________.
-
Mangrove forests
-
Tropical deciduous trees
-
Tropical rainforests
-
Montane forests
The tropical rainforests are confined to areas of heavy rainfall. Areas which receive more than 200 cm of rainfall and have a short dry season are the best area for tropical rainforest. Almost all kinds of vegetation, like trees, shrubs and creepers, are found in such a forest. Ebony, mahogany, rosewood, rubber, and cinchona are some of the commercially important trees of tropical rainforests.
Trees that do not shed their leaves are mostly found in _____________.
-
Hot desert vegetation
-
Tropical monsoon forests
-
Coniferous forests
-
Temperate deciduous forests
Coniferous forests are found in the regions near the equator and close to the tropics. Coniferous forests are made up mainly of cone-bearing or coniferous tress. The leaves of these trees are either small and needle-like or scale-like and most stay green all year around(evergreen). All are softwoods and are able to survive cold temperatures and acidic soil. Hence the tress in the coniferous forests do not shed their leaves altogether.
Famous mountain forest is _____ mountain forest.
-
Brown
-
Red
-
White
-
Grey
The Brown Mountain forest is located in East Gippsland, Victoria(Australia), and it is famous as it is notable for containing large tracts of old growth forest, including over fifty shining gum trees estimated to be over 300 years old.
Trees of mountain forest are ________.
-
large and old
-
small
-
sharp
-
none of these
Mountain forests consist of trees that aren't found in low-lying areas. The trees have adapted to the cool climate, heavy downpours and intense sunshine. In low-lying areas, they are squeezed out by different tree species. Hence trees of mountain forest are large and old.
The Himalayan range is considered as the worlds highest mountain range, with its tallest peak ________ on the Nepal China border.
-
Hindu Kush
-
Mt. Everest
-
Tirich Mir
-
Kunlun
Which of the following areas is noted for mangrove vegetation?
-
Corbett National Park of U.P.
-
Sajnekhali forest of 24 Parganas
-
Lava forest of Kalimpong
-
Dandakaranya forest of Orissa
The leaves of the desert plants are ______.
-
Pointed in shape
-
Small sized and thorny
-
Long
-
Broad
What type of trees are found in the tropical monsoon region?
-
Broad leaf deciduous trees
-
Evergreen trees
-
Conifers
-
Thorny bushes
The Sundarbans or the "Mangrove" forests are found in___________.
-
Konkan Coast
-
Kutch Peninsula
-
Deltaic West Bengal
-
Western Ghats
The Sundarbans mangrove forest, is one of the largest forest in the world which lies on the delta of the Ganges, Brahmaputra and Meghna rivers on the Bay of Bengal. It is shared between the countries of India and Bangladesh. Fourty percent of the area falls in the Indian region and sixty percent in the Bangladesh region.
The evergreen forests are normally found in areas which get more than ____________ cms. of annual rainfall.
-
100
-
150
-
200
-
250
The evergreen forests are normally found in areas which get more than 250 cms. of annual rainfall.
_______ is the largest mangrove forest in the world.
-
Pichavaram
-
Pitara
-
Sundarbans
-
Bhitarkanika
Which one of the following does not grow in evergreen forests?
-
Rosewood
-
Mahogany
-
Bamboo
-
Teak
Mangrove forests are called tidal forests because _________________.
-
They are found along the deltas
-
They are found at the estuaries
-
They are found in non-tidal regions
-
They are formed due to tides
_________ trees grow in Sunderban forest.
-
Babool
-
Seesum
-
Sundari
-
Sabai
Sundari,
In tropical evergreen forest, one of the common animals is ______.
-
Monkey
-
Girraffe
-
Camel
-
Polar bear
Tropical evergreen forests can be moist, in the case of rainforests, or drier with seasonal rain. Both types of tropical evergreen forests have many species of animals. Rainforest animals include monkeys, parrots, smaller animals and large numbers of insects.
The Himalayas have ________ forests.
-
Evergreen
-
Alpine
-
Deciduous
-
Tropical
Alphine,
The Monsoon forests are otherwise called as _________.
-
Tropical evergreen forest
-
Tropical Deciduous forest
-
Mangrove forest
-
Mountain forest
Teak and Ebony belong to ______.
-
Tropical evergreen forest
-
Tropical decidious forest
-
Mangrove forest
-
Hill forest
"Teak and ebony" belong to the Tropical evergreen forest. Tropical evergreen forests stay green throughout the year with every green tree such as conifers, live oak, etc. These forests develop in the 200 cm of rainfall
Which of the following is not a species of tropical moist deciduous forests?
-
Mahogany
-
Sal
-
Shisham
-
Teak
Which one among the following types of forests exhibits highest bio-diversity?
-
Dry deciduous forest
-
Tropical rainforest
-
Moist deciduous forest
-
Mangrove forest
Tropical rainforest,
Moist tropical evergreen forests are found in ___________.
-
The Shillong plateau
-
The Siwaliks
-
The Deccan plateau
-
Southern India
The Shillong plateau,
The Himalayan forests include _________.
-
European Oak Forests
-
Coniferous Forests
-
Alpine Vegetation
-
All the three
The Himalayas consist of a mosaic of diverse forest ecosystems and ecoregions, with different forest types suited for distinct elevation bands. Ths with the variation in the altitude, we have different types o forests in the Himalayas viz. European Oak forests, Coniferous forests and Alpine vegetation as well.
The mangrove forests are present in ________.
-
the Eastern Ghats
-
the Sunderbans
-
the Western Ghats
-
the Aravallis
Which of the following regions has almost all prevalent types of natural vegetation in India?
-
The Coastal Plains
-
The Deccan Plateau
-
The Himalayas
-
The Ganga Plain
Assertion (A): The Himalayan ranges show change in vegetation from tropical to Tundra.
Reason (R): In mountainous area with increase in altitude there is corresponding decrease in temperature, which leads to change in vegetation types.
Select the correct option from the given alternatives.
-
Both (A) and (R) are true and (R) explains (A)
-
Both (A..) and (R) are true but (R) does not explain (A)
-
(A) is true and (R) is false
-
(A) is false and (R) is true
The character and extent of vegetation are mainly determined by temperature along with the humidity in the air, precipitation and soil. On the slopes of Himalayas and the hills of Peninsula above the height of 915 metres, the fall in the temperature affects the types of vegetation and its growth, and changes it from tropical to subtropical temperature. So in the mountainous area with the increase in altitude there is corresponding decrease in temperature, which leads to change in vegetation types.
How much of the world's land area is tropical rainforest?
-
2%
-
5%
-
7%
-
9%
Tropical rainforests are the forests consisting of evergreen trees with green foliage throughout year. They constitute 6 to 7% of earth’s land surface. Such forest give shelter to 50% of world’s species.
The greatest diversity of animal and plant species occurs in ________________.
-
temperature deciduous forests
-
tropical moist forests
-
heavily polluted rivers
-
deserts and savannas
My stem is succulent, my leaves are mostly thick.
In which category of the following vegetation type I am largely found?
-
Tropical deciduous forest
-
Montane forest
-
Tropical thorn forest and scrubs
-
Mangrove forest
Stems are succulent and leaves are mostly thick. This means that the vegetation is found in the area of Tropical thorn forests and scrubs. This is an adaptation which turn leaves thick and succulent to prevent water loss from transpiration.
Which of the following is not a tropical desert?
-
Sahara
-
Arabian desert
-
Thar
-
Gobi
Plants in Desert are ________.
-
Tall grasses
-
Perennial Xerophytic shrubs
-
Dwarf trees
-
Water storing plants
Acacias, palms, euphorbia and cacti are plants common in the ______.
-
Thorn forest.
-
Tropical deciduous forest.
-
Mangrove forest.
-
Montane forest.
Which one of the following types of vegetation has commercially important trees like ebony, mahogany, rosewood and rubber?
-
Montane Forest
-
Tropical Rain Forests
-
Tropical Deciduous Forests
-
Tropical Thorn Forest.
Tropical Rain Forests grows in areas where rainfall is more than 200 cm. Trees in these forests never shed their leaves at all any time in any part of the year. Trees in these belts have dense growth. Important varieties of tress are mahogony, rubber, rosewood, sisthu.
Which one of the following types of vegetation does rubber belong to?
-
Tundra
-
Tidal
-
Himalayan
-
Tropical evergreen.
The tropical evergreen forests usually occur in areas receiving more than 200 cm of rainfall. Semi evergreen forests lies on the dry sides of evergreen forests in Western Ghats, West Bengal, Odisha and other North-Eastern regions of India. The trees in this vegetation are hard wooded, and grow close to each other. Rubber belongs to semi-evergreen forests. Bamboo, ebony and rubber are important vegetation of this region.
Which one of the following state does not have the Tropical deciduous forests?
-
Jharkhand
-
Western Orissa
-
Chhattisgarh
-
Rajasthan.
Tropical deciduous forests are found in the regions that get 100 to 200 centimeters of rainfall per year. They extend from the Shivalik ranges in the North to the eastern flanks of the western ghats in peninsular India. Whereas Rajasthan consists of Thorn forests. Thorn forests are found in dry and arid regions where annual rainfall is less than 80 centimeters.
Which of the following trees is used for treating blood pressure?
-
Jamun
-
Kachnar
-
Neem
-
snakeroot.
Forests made of trees that shed leaves as temperature decreases are classified as ___________.
-
Hot desert vegetation
-
Tropical monsoon forests
-
Coniferous forests
-
Temperate deciduous forests
Temperate deciduous forests or temperate broad-leaf forests are dominated by trees that lose their leaves each year. Temperate deciduous forests are located in the mid-latitude areas which means that they are found between the polar regions and the tropics. The deciduous forest regions are exposed to warm and cold air masses, which cause this area to have four seasons. The temperature varies widely from season to season with cold winters and hot, wet summers. When temperature decreases, trees change color and then lose their leaves. This is in preparation for the winter season. Because it gets so cold, the trees have adapted to the winter by going into a period of dormancy or sleep.
________ type of vegetation found in the desert areas.
-
Tall grass
-
Thorny shrubs
-
Trees with conical leaves
-
Trees with wide leaves
Thorny shrubs,
Deltas, estuaries and beaches in coastal areas have peculiar type of vegetation that has aerial roots and can grow in salty water. This is called ________________.
-
Mangrove vegetation
-
Evergreen vegetation
-
Shola forest
-
Mixed vegetation
Deltas, estuaries and beaches in coastal areas have peculiar type of vegetation that has aerial roots and can grow in salty water. This is called Mangrove vegetation.
Littoral forests occurs _____________.
-
on hills
-
along the sea coasts and tidal creeks
-
where the rainfall is heavy
-
at elevated places