Abiotic components - class-VI
Description: abiotic components | |
Number of Questions: 90 | |
Created by: Prabha Kade | |
Tags: ecosystem : structure and function zoology botany principles of ecology ecology and environment diversity for sustenance environmental factors population and ecological adaptations biology living in harmony organisms and population the habitat of living |
I. Temperature
II. Humidity
III. Vegetation
The abiotic factors of ecosystem include
Pedology is the science of
The part of the biosphere which contains soil is known as
In a .......... ecosystem, the producers are mostly herbaceous or woody plants.
Environment consists of
Which of the following components of biosphere makes an interface with the soil?
Which of the following gas is present at a very high concentration in our environment?
At any given time, __________ of the earth is illuminated by the sun.
Which ecosystem is important in purifying air, recycling water and controling climate?
Edaphic factors are related to
If there was no CO$ _2$ in the earth's atmosphere, the temperature of earth's surface would be
Due to the increased average global temperature on fish populations, the fish will show
I. Movement from saline to fresh waters
II. Movement to deeper waters
III. Movement to higher latitudes
There is no atmospheric reservoir in
The phosphorus cycle differs from those of carbon and nitrogen as well as from those of sulphur, oxygen and hydrogen in that it lacks
The asteroid which is believed to have collided with earth some 65 million years ago is
Which statements regarding response of organisms to abiotic factors in false?
Select incorrect statement :
The lowest temperature of any land mass of the universe was recorded in
Which one of the following is not a correct match of the term and its description?
The abiotic components of the environment are the living factors.
Which of the following is an ecosystem service provided by a natural ecosystem?
The minimum temperature in the sea is .......... , while in freshwater ponds it never goes below ..........
Aquatic and terrestrial animals need sulphur and nitrogen to
Scientists are able to determine the air temperature in the thermosphere by:
Initial causes of ecological succession includes:
Ecotype is a type of species in which environmentally induced variations are
Non living things in an environment is known as
Which of the following is not properly matched?
In what way a plant growing on a forest floor is adapted for its survival?
The ultimate energy source of all ecosystems is?
Out of the total proposed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are.
Edaphic factor refers to.
Life arose in
Terrestrial life would become impossible with
The source of energy in an ecosystem is
All of these are examples of abiotic factors except
Which of the following is not a property of water?
All of these are considered ecosystem services except
Which of these is an example of an abiotic factor?
I. Crickets
II. Rainfall
Ill. Shark
Which is not a natural ecosystem?
Which of the following is a climatic factor?
If all the plants of the world die, all the animals will also die due to shortage of
Source of energy in ecosystem is
Which of the following is present in maximum amount in atmosphere?
Which of the following is a source of energy to an ecosystem?
In an ecosystem of abiotic components which of the following occur?
Which one of the following components of ecosystem comes from outside?
Source of energy in ecosystem is
Pick the odd one out
Natural gas, Sun, Bio-mass, Wind.
Which of the following is most ecologically relevant factor ?
Read the following statements and choose the correct set of option w.r.t. ecosystem.
I. Various ecosystem are interconnected by flow of energy and transfer of materials.
II. It is self sustained and self regulated segment of nature.
III. Energy flow is always cyclic while flow of nutrients is unidirectional.
IV. Density of ecosystem is governed by degree of biogeochemical cycling and the amount of nutrients.
Identify which is not correct?
The earth is tilted at an angle of $23.5^{o}$ with respect to the plane of its orbit around the sun. If the amount of tilt were increased to $40^{o}$, we would expect in middle latitudes:
In the stratosphere, the air temperature normally:
Sunlight that bounces off a surface is said to be __________ from the surface.
One third of sunlight striking earth and its atmosphere is reflected back to
Sunlight passes through a thicker portion of the atmosphere at
In which ecosystem sun is main source of energy?
Mangroves and estuaries, less dependent on
The creating force of any ecosystem is
Ecosystem has two components. They are
Soil erosion can occur due to
Which of the following occurs in abiotic component of ecosystem?
Primary source of energy in an ecosystem is
Which one of following word is related to Homo sapiens?
Soil is affected by
The main factor for determining the distribution and abundance of eukaryotic extremophiles is
Which of the following is most important abiotic factor in pond ecosystem?
Maximum contribution of $O _2$ is from
The reservoir pool for gaseous cycles of matter is ____________.
Edaphic factors are related to
Which one of the following is not an edaphic factor ?
Ultimate source of energy for living beings is
The driving force for an ecosystem is
Multinational source of energy is
Choose the correct answers from the alternatives given :
What is the source of the energy that flows through the living world?
Who of the following are the ultimate sources of energy for carnivorous organisms in the food chain of a forest ecosystem?
Rainfall pattern depends on
Migration in birds is guided in part by-
Low clouds retard surface cooling at night better than clear skies because:
If a glass of water were surrounded by saturated air:
The primary source of energy for the earth's atmosphere is:
If you want to keep an object cool while exposed to direct sunlight,
The lag in daily temperature refers to the time lag between the:
What are sources of energy an ecosystem rely on?
In which ecosystem sun energy is replaced by highly concentrated potential energy of chemicals and fuels?
Water logged soils are generally
Solar radiations heat up
Which one of the following is biotic in origin?