Tag: zoology

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

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

  1. I only

  2. I and II

  3. II and III

  4. I,II and III
Reveal answer Fill a bubble to check yourself
D Correct answer
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'
Multiple choice zoology global environmental change causes of greenhouse effect global warming adaptation in animals

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

  1. Antarctica

  2. Glaciers and polar ice

  3. Greenland

  4. Polar ice
Reveal answer Fill a bubble to check yourself
B Correct answer
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'
Multiple choice zoology global environmental change causes of greenhouse effect global warming adaptation in animals

Global warming can be controlled by 

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Excess of carbon dioxide in the atmosphere leads to 

  1. Global warming

  2. Ozone depletion

  3. Acid rain

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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. 

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

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

  1. Global warming

  2. Global cooling

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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.
Multiple choice zoology global environmental change causes of greenhouse effect global warming adaptation in animals

Chernobyl nuclear tragedy occurred in

  1. April, 1986

  2. August 6, 1945

  3. August 9, 1945

  4. December 3, 1984
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Environment is warmed up by

  1. Water vapour

  2. Methane
  3. $CO _2$

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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. 

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

Presence of CFCs in the atmosphere is responsible for

  1. Formation of ozone

  2. Production of healthy plants

  3. Depletion of ozone layer

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
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. 

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

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

  1. Increase in productivity

  2. Melting of polar ice

  3. Destruction of phytoplanktons

  4. Inundation of coastal towns
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While all listed options are potential consequences of climate change, the melting of polar ice is a direct and immediate physical response to a significant rise in global temperature.

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

What is the potential danger of greenhouse effect?

  1. Poor photosynthesis

  2. Heavy rainfall

  3. Coastal flooding

  4. More humidity in environment
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coastal flooding is a major potential danger of the greenhouse effect because rising temperatures cause glaciers to melt and seawater to expand, leading to a rise in sea levels.