Greenhouse Effect and Global Warming MCQs and Answers

Are you looking for Greenhouse Effect and Global Warming MCQs and Answers for medical entrance examinations? If yes, these are some most important multiple choice questions and answers on NCERT Class-12 Biology, Chapter-16 (Environmental Issues).

Here we composed these Greenhouse effects and Global Warming MCQs and Answers after reading the chapter on Environmental Issues from the NCERT book on Class 12 Biology. The questions are topics-wise and the students can relate the questions easily to the most important topics of this chapter.

Greenhouse Effect and Global Warming MCQs and Answers

1. From which phenomenon is the term ‘Greenhouse effect’ derived?

a) That occurs in a boathouse

b) That occurs in a greenhouse

c) That occurs in a blue house

d) That occurs in a house

Answer: b


2. What is a small glasshouse used for growing plants especially during winter called?

a) Greenhouse

b) Lakehouse

c) Boathouse

d) Treehouse

Answer: a


3. In a greenhouse the glass panel lets the light in, but what is not escaped?

a) Light

b) Heat

c) Energy

d) Air

Answer: b


4. What helps in warming the greenhouse?

a) Light

b) Energy

c) Plants

d) Heat

Answer: d


5. Which naturally occurring phenomenon is responsible for heating of Earth’s surface and atmosphere?

a) Eutrophication

b) Bio-magnification

c) Greenhouse effect

d) Cooking

Answer: c


6. Which gases are commonly known as greenhouse gases?

a) Nitrogen

b) Carbon dioxide

c) Chlorine

d) Oxygen

Answer: b


9. What does the increase in the level of greenhouse gases lead to?

a) No change in ecosystem cycles

b) Proper plant growth

c) Proper rainfall

d) Global warming

Answer: d


10. Which one of the following ways can be used to control global warming?

a) Increasing deforestation

b) Reducing efficiency of energy usage

c) Reducing the use of fossil fuel

d) Increasing the growth of the human population

Answer: c


11. Which one of the following ways can be used to control global warming?

a) Increasing the growth of the human population

b) Planting trees

c) Increasing the use of fossil fuels

d) Increasing deforestation

Answer: b


FAQs on Greenhouse Effect and Global Warming

What is the greenhouse effect?

The greenhouse effect is a process by which thermal radiation from a planet’s surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. This process causes the planet’s atmosphere to become warm.

What is global warming?

Global warming is the gradual increase of the Earth’s average surface temperature. The main component of global warming is the increased emission of greenhouse gases. These greenhouse gases form a “blanket” around Earth that traps energy from the sun. This trapped energy makes the Earth’s atmosphere warm and disturbs the Earth’s climate. It is not just the Earth’s temperature that we must worry about in the near future. Climate change has the potential to cause various types of disasters, including hurricanes, famine, drought, and displacement of species.

What is the difference between the greenhouse effect and global warming?

The greenhouse effect is a natural phenomenon that warms the Earth’s surface. Global warming is the name given to the observed and projected increase in the Earth’s average surface temperature.

What are the main greenhouse gases?

The main greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.

What are the main causes of global warming?

The main cause of global warming is the increased emission of greenhouse gases. These greenhouse gases form a “blanket” around Earth that traps energy from the sun. This trapped energy makes the Earth’s atmosphere warm and disturbs the Earth’s climate.

What are the consequences of global warming?

The consequences of global warming include climate change, hurricanes, famine, drought, and displacement of species.

Have any other questions about Greenhouse Effect and Global Warming? Leave a comment below and we’ll do our best to answer them!

Comments