Geobiochemical cycle - class-VIII
Description: geobiochemical cycle | |
Number of Questions: 93 | |
Created by: Priya Bakshi | |
Tags: atmospheric pollution air pollution air and water pollution control pollution pollution of air and water chemistry environment biology energy flow in an ecosystem energy planet earth natural resources- air, water and land occurrence of carbon compounds in nature air environmental chemistry |
Which of the following is not a greenhouse gas?
Increased level of greenhouse gases causes global warming which will result in:
Few pollutants and their effects are listed below.
Mark the incorrect match.
Global warming is due to greenhouse effect. The greenhouse gas include:
Green house effect can be reduced by:
If $CCl _{3}$F is present in the stratosphere, it will react with which of the following:
A) Ozone B) $N _{2}$ C)$CO _{2}$
On warming formic acid with ammoniacal silver nitrate, the product formed is
Greenhouse effect keeps the earth surface:
Carbon dioxide and methane are the two major components of greenhouse.
The main reasons for deforestation are:
What are the advantages of chlorofluorocarbons?
The radiations from the sun is trapped by the earth's atmosphere. This effect is called :
Earth's greenhouse effect causes:
The average temperature of the earth's atmosphere is gradually increasing. This is due to:
Which protocol is agreement of global warming concern?
The Kyoto Protocol is protocol for :
The Gangotri glacier in the Himalayas has started melting because of:
Gases like methane, nitrous oxide and water vapour also contribute towards greenhouse effect, they are also called ___________.
______ can cause sea levels to rise dramatically.
Green house gas among the following is/are:
What is the main source of global warming?
Among the following, which is a greenhouse gas?
Which of the following conclusions are made on methane in natural environment?
The important conclusions on the formation of trihalomethanes are which of the following?
Alkanes are __________ in water.
Which of the following problems is associated with the burning of coal?
Solar energy stored in material such as wood, grain, sugar, and municipal waste is called:
Commercial sources of alkanes include:
When the soil of the greenhouse nurseries is sterilized with methyl bromide gas, it leads to a deficiency of:
Which is responsible for ozone depletion?
Green house effect is mainly due to increase in the levels of:
Melting of ice caps may be due to :
a) Depletion of ozone layer
b) Global warming
c) Acid rain
The correct match is:
List - I | List - II | ||
---|---|---|---|
A. | Freons | 1. | Rise in temperature of earth's surface |
B. | Ozone | 2. | Forms holes in ozone layer |
C. | Carbon dioxide | 3. | Protects life from UV raidation |
D. | Sulphur dioxide | 4. | Increase in fluoride ion concentration |
5. | Acid rain |
Greenhouse effect is caused by:
i) accumulation of $O _{2}$ in the atmosphere
ii) depletion of $O _{3}$ layer
iii) accumulation of $CO _{2}$ in the atmosphere
The gases associated with the green house effect is:
Which of the following is a set of green house gases?
The gas that is not considered as a 'green house gas' is:
Which of the following is not a greenhouse gas?
Which of the given option is not correct?
What is the effect of release of $CO _2$ gas on atmosphere?
Which of the following is a set of green house gases?
Select the correct statements about greenhouse gases:
B. The greenhouse gases trap heat and do not allow heat to escape into outer space.
C. Water vapours do not contribute to the greenhouse effect.
D. The presence of excessive greenhouse gases in the atmosphere is responsible for global warming.
What is the cause of Green house effect?
Green house effect is caused by :
The earth gives up .......... energy into atmosphere.
Which of the following statements is not true?
Greenhouse effect causes:
Global warming causes:
1) an increase in the sea level
2) the melting of ice at mountain peaks
3) a decrease in food production by plants
The release of carbon dioxide into the air causes:
Gases referred as 'greenhouse gases' are:
Cause:
Global warming is the result of the increase in ________ in air.
Which of the following gases cause the harmful green house effect?
Which of the following is not a green house gas?
Carbon dioxide is the major component of greenhouse gases.
Deforestation leads to an increase in the amount of $CO _2$ in the air:
Which of the following is one of the gases responsible for green house effect?
Naturally occurring amounts of greenhouse gases have a mean warming effect of about _______on Earth.
Global warming could result in wide ranging effects on:
Majority of people living in regions which are threatened by global warming are in:
What causes the global warming?
Which of the following gasses contribute to greenhouse effect?
Argon is a greenhouse gas.
Which of the following is a greenhouse gas?
_________ is a gas in an atmosphere that absorbs and emits radiation within the thermal infra-red range.
Black carbon, a potential global warming gas causes__________.
The greenhouse effect is useful because:
Greenhouse gases cause:
Which of the following is next to carbon dioxide for its contribution to global warming?
Which of the following is a factor that affect the degree to which any greenhouse gas will influence global warming?
Global warming leads to:
__________ used as refrigerants and aerosol propellants are also greenhouse gases.
Greenhouse effect is a major cause of:
Full synthetic oils are derived from crude oil or byproducts through a chemical process rather than the __________ process used for conventional oil.
Which of the following is the natural sources of the most volatile hydrocarbon?
Which of the following is not the source of hydrocarbon as a pollutant?
Example of primary pollutant:
The increase in the concentration of $CO _2$ in our environment in last fifty years, since 1960 is about:
The principal source of volatile organics (Hydrocarbons) is:
Hydrocarbon PCB is called as_________.
Gloal warming is a serious outcome of:
Which chemical substance is a greenhouse gas that scientists link to global climate change?
Which of the following pollutions occur due to hydrocarbons?
Which of the following are the source for hydrocarbons as pollutants?
What is the cause of Green house effect?
The gas that is not considered as a 'green house gas' is:
The two gases making the highest relative contribution to the greenhouse gases are:
Which of the following is not a green house gas?
Increased concentration of ______ in the air is believed to cause global warming.
Identify the non-Green House Gas (GHG) from the following
Greenhouse gas is produced if oxygen is combined with :
The purest form of water that is considered to be ________.
Natural water is: