Tag: global environmental change

Questions Related to global environmental change

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

The main reason for global warming is?

  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

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Global warming is primarily driven by the enhanced greenhouse effect caused by the accumulation of greenhouse gases like carbon dioxide in the atmosphere, which trap heat.

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

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

  1. Global warming

  2. Eutrophication

  3. Acid rain

  4. Respiratory problems

Reveal answer Fill a bubble to check yourself
A Correct answer
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 zoology global environmental change causes of greenhouse effect global warming adaptation in animals

Multiple Choice Questions
Global warming can be controlled by

  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.

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

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

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

  1. Uneven distribution of human population

  2. Global warming

  3. Depletion of ground water

  4. Ozone depletion

Reveal answer Fill a bubble to check yourself
B Correct answer
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

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

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

  1. Carbon Dioxide

  2. Methane

  3. Ozone

  4. Nitrogen Di-oxide

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide (CO2) is used as the reference gas for Global Warming Potential (GWP) calculations, with a GWP value defined as 1. Other gases are measured relative to this baseline.

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

Contribution of methane to global warming is 

  1. 6%

  2. 14%

  3. 20%

  4. 30%

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