Tag: zoology

Questions Related to zoology

Global Warming Clauses 
I. An increase in the sea level
II. The melting of ice at mountain peaks
III. A decrease in food production by plants

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. I only

  2. I and II

  3. II and III

  4. I,II and III

Show answer
Correct Option: D
Explanation:
In the given question, all the statements are correct because global warming has led to an increase in the average temperature of the Earth has led to the melting of ice in mountain peak resulting in higher sea levels global warming as also adversely affected the production and yield of crops.
So, the correct answer is 'I,II and III'

More than 70% of world's fresh water is contained in 

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Antarctica

  2. Glaciers and polar ice

  3. Greenland

  4. Polar ice

Show answer
Correct Option: B
Explanation:
Water covers three fourth portion of the Earth where marine water is up to 3.5%, freshwater present on land is 2.5%, most of the freshwater is present in glaciers and polar ice caps.
So, the correct option is 'Glaciers and Polar caps'

Global warming can be controlled by 

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Reducing reforestation, increasing the use of fossil fuel

  2. Increasing deforestation, slowing down the growth of human population

  3. Increasing deforestation, reducing efficiency of energy usage

  4. Reducing deforestation, cutting down use of fossil fuel

Show answer
Correct Option: D
Explanation:

Global warming is the biggest challenge for the developing countries like India. The rapid increase in human population and the increased levels of pollution are the major contributors of global warming.The percentage of heat-trapping carbon dioxide (CO$ _2$) increases due to the burning of  fossil fuels to generate electricity, fuel our cars, and heat our homes. Deforestation also increases the concentration of carbon dioxide in the atmosphere.

So, the correct answer is option D.

Excess of carbon dioxide in the atmosphere leads to 

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Global warming

  2. Ozone depletion

  3. Acid rain

  4. None of the above

Show answer
Correct Option: A
Explanation:

Modern human activities are responsible for the release of huge quantities of CO$ _2$ in the atmosphere. The major activities, which contribute towards this, are burning of fossil fuels and cultivation of the soil. Although CO$ _2$ is not considered as a pollutant, an increase in its proportion in the atmosphere can lead to global warming through increased greenhouse effect. 

Which of the following defines the effect of deforestation on the next generation?

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Global warming

  2. Global cooling

  3. Both A and B

  4. None of the above

Show answer
Correct Option: A
Explanation:
As a result of deforestation, chances of desertification, droughts, floods, etc. increase. Deforestation can also increase the level of carbon dioxide in the Earth, it will lead to an increase in temperature i.e., global warming. As a result, the entire natural water cycle will get disrupted. This again increases the risk of natural calamities.
Thus, the correct answer is option A.

Chernobyl nuclear tragedy occurred in

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. April, 1986

  2. August 6, 1945

  3. August 9, 1945

  4. December 3, 1984

Show answer
Correct Option: A
Explanation:

The Chernobyl disaster was a nuclear accident that occurred on 26 April 1986 at the Chernobyl nuclear power plant in Ukraine. In this accident, large quantities of radioactive particles were released into the atmosphere, which spread over much of the western USSR and Europe. It was the worst nuclear accident in history.

Environment is warmed up by

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Water vapour

  2. Methane

  3. $CO _2$

  4. All of the above

Show answer
Correct Option: D
Explanation:

The greenhouse effect is caused by the greenhouse gases. The gases methane, carbon dioxide, and water vapour trap the solar radiations which need to be reflected back to the atmosphere and increase the temperature of the earth. The greenhouse is considered as the direct cause of global warming.

Thus, the correct answer is option D. 

Presence of CFCs in the atmosphere is responsible for

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Formation of ozone

  2. Production of healthy plants

  3. Depletion of ozone layer

  4. None of these

Show answer
Correct Option: C
Explanation:

CFCs are used as coolants in refrigerators, coolers, etc. The CFCs causes the breaking of the ozone molecule which forms the oxygen radical and O$ _2$. So, the presence of CFCs in the atmosphere results in the depletion of the ozone layer and allowing the penetration of the harmful UV radiations from the sun into the Earth's atmosphere. 

Thus, the correct answer is option C. 

What immediate hazard is likely to occur if the temperature of the earth rises by 5$^oC$?

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Increase in productivity

  2. Melting of polar ice

  3. Destruction of phytoplanktons

  4. Inundation of coastal towns

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Correct Option: B

What is the potential danger of greenhouse effect?

zoology global environmental change causes of greenhouse effect global warming adaptation in animals

  1. Poor photosynthesis

  2. Heavy rainfall

  3. Coastal flooding

  4. More humidity in environment

Show answer
Correct Option: C