Tag: causes of greenhouse effect

Questions Related to causes of greenhouse effect

Which of the following are the correct approaches to reduce global warming ?
(i)   Use of fossil fuels 
(ii)   Improving efficiency of energy usage 
(iii)  Afforestation
(iv)  Increasing growth of human population

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

  1. (i) and (ii)

  2. (ii) and (iii)

  3. (iii) and (iv)

  4. (i), (ii) and (iii)

Show answer
Correct Option: B
Explanation:

To reduce global warming following measures must be taken:
(i)  cutting down the use of fossil fuel
(ii)  Improving efficiency of energy usage
(iii) Reducing deforestation
(iv) Planting trees and slowing down the growth of human population.

In the event of global warming, which one of the following is most likely to occur?

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

  1. Existing plant and animal communities will move North in response to warming.

  2. Agriculture in the prairie provinces will be redeveloped on soils of the Canadian Shield.

  3. The anticipated rise in sea level will be caused primarily by the melting of polar ice caps.

  4. The decomposition of organic matter in the unfrozen surface layer of polar soils will increase.

Show answer
Correct Option: C
Explanation:
It is believed that increase in concentration of greenhouse gases has resulted in rise of atmospheric temperature which is slight in tropics, moderate in middle latitudes and maximum in polar regions. Global warming could raise sea level due to thermal expansion of sea water, melting of glaciers and Greenland ice sheet. There is a danger of submersion of large area as one third of human population lives within 60 km of coastline. Coastal salt marshes and estuaries, wetlands, drylands, freshwater supplies, fisheries, fish breeding areas and other types of wildlife will undergo extinction.
So, the correct answer is 'The anticipated rise in sea level will be caused primarily by the melting of polar ice caps'.

Which of the following would happen in the presence of greenhouse effect in the atmosphere?

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  1. Pollution will increase

  2. The earth's surface temperature will increase

  3. The earth's surface temperature remains the same,

  4. The depleted ozone layer will decrease the earth's temperature.

Show answer
Correct Option: B
Explanation:

Greenhouse gas like co$ _2$, methane, CFC absorbs the radiation reflected from the earth's surface in the form of heat and increases the atmosphere's temperature is called as greenhouse effect which leads to the global warming.

Global warming will cause.

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

  1. Rise is level of oceans

  2. Decrease in glaciers

  3. Reduction in ice caps

  4. All the above

Show answer
Correct Option: D
Explanation:

Global warming causes melting of polar ice caps. This decreases the size of glaciers and leads to the rise of oceans.

So, the correct option is 'All of the above'.

If global warming continues, organism facing severe threat is?

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

  1. Banana

  2. Dolphin

  3. Cow

  4. Snow Leopard

Show answer
Correct Option: D
Explanation:
Global warming is the continuous increase in temperature of earth's surface due to increase in concentration of greenhouse gases. The rise in temperature leads to melting of polar ice caps and this will lead to rise in sea level, due to which many coastal areas will get submerged.
Hence, if global warming continues, Snow Leopard will face severe threat as ice will melt due to global warming and its natural habitat will get destroyed.
So, the correct answer is 'Snow Leopard'.

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.