Preparing for competitive exams like OSSSC RI, ARI, Amin, SFS, and ICDS Supervisor often requires a strong understanding of various subjects, including Environment and Climate. Here are 30 multiple-choice questions (MCQs) to help you prepare effectively.
Top 30 Environment and Climate MCQS For OSSSC RI,ARI, Amin, SFS, ICDS Supervisor
- Which one of the following causes global warming?
a) Carbon dioxide
b) Oxygen
c) Nitrogen
d) Hydrogen
Answer: a
Explanation: About 75% of the solar energy reaching the earth is absorbed by the earth’s surface; the rest of the heat radiates back to the atmosphere. Some of the heat is trapped by greenhouse gases like carbon dioxide, which is released by various human activities. - How many percent of carbon dioxide increased in the atmosphere since pre-industrial times?
a) About 10%
b) About 20%
c) About 30%
d) About 40%
Answer: c
Explanation: The carbon dioxide in the atmosphere has increased by about 30% since pre-industrial times, causing more heat to be trapped in the lower atmosphere. Human activities, industrialization, and population growth are the main reasons. - What is the full form of UNFCC with respect to global warming convention?
a) United Nations Framework Convention on Climate Change
b) United Nations Federation Convention on Climate Change
c) United Nations Framework Center on Climate Change
d) United Nations Federation Center on Climate Change
Answer: a
Explanation: To control the continuous increase in carbon dioxide levels, many countries have signed a convention to reduce greenhouse gases under the United Nations Framework Convention on Climate Change (UNFCC). - Who measures the global warming rate?
a) Astrologers
b) Physicists
c) Philosophers
d) Climatologists
Answer: d
Explanation: Global warming is usually calculated by climatologists. Global warming is accelerating faster than predicted, with expectations of a temperature rise of 3.5 to 10 degrees Celsius in the 21st century. - Which one of the following results takes place due to global warming?
a) Maintaining steady temperature
b) Changes in rainfall
c) Pleasant environment
d) Causing less pollution
Answer: b
Explanation: Global warming leads to changes in temperature and rainfall, causing various problems, such as floods or droughts. - Human activities cause global warming.
a) True
b) False
Answer: a
Explanation: Human activities during the last few decades of industrialization and population growth have seriously polluted the atmosphere, affecting vegetation and organisms. - Which one of the following causes global warming?
a) Radiative forcing
b) Earth’s gravitational force
c) Oxygen
d) Centripetal force
Answer: a
Explanation: Radiative forcing measures the influence of climatic factors on the earth’s radiation balance. Changes in radiative forcing contribute to global warming. - How has human activity influenced global warming?
a) By planting more trees
b) By causing changes in gravitational force
c) By changing the radiative balance governing the Earth
d) By protecting the environment
Answer: c - Which one of the following is the anthropogenic radiative forcing of climate?
a) Aerosols
b) Cement
c) Paper
d) Glass
Answer: a
Explanation: Aerosols represent significant anthropogenic radiative forcing. They block, reflect, and absorb incoming solar radiation, leading to negative radiative forcing. - Which one of the following land use causes global warming?
a) Increase in the fertility of soil
b) Surface reflectance
c) Forestation
d) Adopting organic farming
Answer: b
Explanation: Changes in land use, like replacing forests with cropland, can influence global warming through surface reflectance or Earth’s albedo. - Changes in the composition of the atmosphere are an example of?
a) Internal forcing
b) External forcing
c) Mid forcing
d) Gravitational forcing
Answer: b
Explanation: Long-term climate changes stem from external forcing, like increased greenhouse gases in the atmosphere. - What is the main reason for the melting of ice sheets?
a) Increase in the oxygen content
b) Global warming
c) Decrease in carbon dioxide content
d) Noise pollution
Answer: b
Explanation: Global warming accelerates the melting of ice sheets, permafrost, and glaciers, causing sea levels to rise. - Which one of the following is the effect of global warming?
a) Maintaining sea level
b) Proper rainfall
c) Desertification
d) Afforestation
Answer: c
Explanation: Desertification is a consequence of global warming, leading to water shortages and degradation of dry regions. - Soot only warms Earth’s climate system.
a) True
b) False
Answer: b
Explanation: Soot can either cool or warm Earth’s climate system, depending on whether it is airborne or deposited. - Which of the following statements is correct about achieving sustainable development?
(a) Sustainable development can be achieved by restricting the usage of renewable resources
(b) Sustainable development can be achieved by controlling the growth rate of the world’s population
(c) Sustainable development can be achieved by controlling the menace of pollution
(d) All of the above
Ans. (d) - Which of the following statements is true about global warming?
(a) Global warming has led to large scale deforestation
(b) Global warming has led to a rise in the sea levels
(c) Global warming has led to a rapid increase in the population across several countries
(d) Global warming has led to a huge amount of waste generation
Ans. (b) - Which of the following was the main purpose behind setting up the Central Pollution Control Board (CPCB)?
(a) The main purpose of the Central Pollution Control Board was to regulate air pollution
(b) The main purpose of the Central Pollution Control Board was to regulate water pollution
(c) The main purpose of the Central Pollution Control Board was to regulate noise pollution
(d) The main purpose of the Central Pollution Control Board was to regulate deforestation
Ans. (a) - Which of the following statements is correct?
(a) Tides are a conventional source of energy
(b) The sun is a conventional source of energy
(c) Wind is a conventional source of energy
(d) Dried dung is a conventional source of energy
Ans. (d) - Which of the following statements about the ozone shield is accurate?
(a) The ozone shield is found in the troposphere
(b) The ozone shield is found in the stratosphere
(c) The ozone shield is found in the exosphere
(d) The ozone shield is found in the mesosphere
Ans. (b) - Which of the following statements is true about the ozone layer depletion?
(a) Ozone layer depletion leads to the problem of skin cancer within humans
(b) Ozone layer depletion results in a lower amount of production of phytoplankton
(c) Ozone layer depletion hampers the growth of terrestrial plants
(d) All of the above
Ans. (d) - Which of the following statements is true?
(a) Ozone depletion is one of the main reasons for soil erosion
(b) Deforestation is one of the main reasons for soil erosion
(c) Air pollution is one of the main reasons for soil erosion
(d) Global warming is one of the main reasons for soil erosion
Ans. (b) - Which of the following statements is true?
(a) The Central Pollution Control Board has identified twenty-five industrial categories as significantly polluting
(b) The Central Pollution Control Board has identified thirty-five industrial categories as significantly polluting
(c) The Central Pollution Control Board has identified forty-five industrial categories as significantly polluting
(d) The Central Pollution Control Board has identified seventeen industrial categories as significantly polluting
Ans. (d) - Which of the following statements is true?
(a) Economic growth is the modern concept for development
(b) Political growth is the modern concept for development
(c) Sustainable growth is the modern concept for development
(d) Social growth is the modern concept for development
Ans. (c) - Which of the following statements is correct?
(a) Global warming is a result of ozone layer depletion
(b) Global warming is a natural phenomenon
(c) Global warming is defined as the rise in the average temperature of the surface of the Earth
(d) Global warming is simply another term that scientists use to describe the greenhouse effect
Ans. (c) - Which of the following statements is correct?
(a) The Chipko movement was about banning the use of chlorofluorocarbons, bromine, and chlorine compounds
(b) The Kyoto protocol was about banning the use of chlorofluorocarbons, bromine, and chlorine compounds
(c) The Appiko movement was about banning the use of chlorofluorocarbons, bromine, and chlorine compounds
(d) The Montreal protocol was about banning the use of chlorofluorocarbons, bromine, and chlorine compounds
Ans. (d) - Which of the following statements about climate change is true?
(a) Plantation can be a preventive measure to tackle climate change
(b) The usage of cycles instead of bikes or cars for transportation can be a preventive measure to tackle climate change
(c) The usage of organic products can be a preventive measure to tackle climate change
(d) All of the above
Ans. (d) - Which of the following statements gives the correct meaning of absorptive capacity?
(a) Absorptive capacity is defined as the ability of our environment to absorb degradation
(b) Absorptive capacity is defined as the method of resource generation that is within the assimilating capacity of our environment
(c) Absorptive capacity is defined as the average number of organisms that are living within a given environment
(d) Absorptive capacity is defined as the minimum population that is currently surviving in the world
Ans. (a) - Which of the following is true about the environment?
(a) The environment includes only biotic factors
(b) The environment includes only abiotic factors
(c) The environment includes both biotic and abiotic factors
(d) The environment includes neither biotic nor abiotic factors
Ans. (c) - Which of the following statements is true?
(a) The United Nations Conference on Climate Change was held in India in the year 1997
(b) The United Nations Conference on Climate Change was held in Japan in the year 1997
(c) The United Nations Conference on Climate Change was held in China in the year 1997
(d) The United Nations Conference on Climate Change was held in Canada in the year 1997
Ans. (b)
