Tag: global environmental change

Questions Related to global environmental change

The main reason for global warming is?

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

  1. Gradually increasing temperature of the Sun

  2. Gradually increasing temperature in the earth core

  3. Increased accumulation of $CO _2$ in air

  4. Establishment of more industries using exothermic processes

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Correct Option: A

The release of $CO _2$ into air can cause:

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

  1. Global warming

  2. Eutrophication

  3. Acid rain

  4. Respiratory problems

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Correct Option: A
Explanation:

Global warming occurs when carbon dioxide and other air pollutants called the greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth’s surface.

Hence, the correct answer is 'Global warming'.

Multiple Choice Questions
Global warming can be controlled by

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

  1. Increasing deforestation, reducing efficiency of energy use

  2. Reducing deforestation, cutting down use of fossil fuel

  3. Reducing deforestation, increasing use of fossil fuel

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

Show answer
Correct Option: B
Explanation:

Global warming refers to the increase in the average temperature of earth due to an excessive amount of greenhouse gases namely CO$ _2$, CH$ _4$ etc. It can be controlled by reducing deforestation. A high plant cover utilizes the major amount of CO$ _2$ from the air. Also another method of control is cutting down the use of fossil fuels which otherwise emits greenhouse gases like CO$ _2$, N$ _2$O etc.

So, the correct answer is option B, reducing deforestation, cutting down use of fossil fuel.

In 2015 and 2017, there was very heavy rain in our state. In 2016, there was no adequate rain. These extreme conditions are due to

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

  1. Uneven distribution of human population

  2. Global warming

  3. Depletion of ground water

  4. Ozone depletion

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Correct Option: B
Explanation:

Global warming refers to an increase in the overall temperature of the atmosphere due to accumulation of greenhouse gases that trap long wave radiations. Due to this, the water cycle is affected because the cloud formation is erroneous. This causes disturbed pattern of rainfall. Other effects of global warming are shown in the following diagram:

Image result for effects of global warming

The change of state of ice into water vapor is known as:

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

  1. Deposition

  2. Sublimation

  3. Melting

  4. Condensation

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Correct Option: B

What causes rapid melting of glaciers?

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

  1. Natural occurance of climatic variability

  2. Man-made global warming

  3. Volcanic eruption

  4. Solar variability

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Correct Option: B

Scientists predicted, ecosystem would adversely affected by

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

  1. Global Warming

  2. Urbanization

  3. Deforestation

  4. Acid deposition

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Correct Option: A

'Human activities' are playing main role in causing;

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

  1. Acid deposition

  2. Global warming

  3. Deforestation

  4. Urbanization

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Correct Option: B

Which among the following gas is used as reference to calculate "Global Warming Potential (GWP)"?

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

  1. Carbon Dioxide

  2. Methane

  3. Ozone

  4. Nitrogen Di-oxide

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Correct Option: A

Contribution of methane to global warming is 

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

  1. 6%

  2. 14%

  3. 20%

  4. 30%

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Correct Option: C
Explanation:

The poisonous gases released in the environment traps the radiations on the earth and increases temperature which leads to global warming. Methane is a more potent greenhouse gas than $CO _2$, there is over 200 times more $CO _2$ in the atmosphere. For example $CO _2$ levels are 380 ppm (parts per million), while methane levels are 1.75 ppm. Hence, the amount of warming methane contributes is calculated at 20% of the warming $CO _2$ contributes.