Environmental Studies · Geography

Climate Change Impacts

3,619 Questions

Review climate change impacts through a series of questions addressing global warming, sea level rise, and shifting weather patterns. The set covers consequences on water resources, agriculture, and biodiversity. This topic frequently appears in the general awareness and environmental studies sections of major competitive exams.

Sea level riseDeforestation effectsWater resource impactsInvasive species distribution

Climate Change Impacts Questions

Multiple choice

Why is the Antarctic Circumpolar Current important to the world’s climate?

  1. It redistributes temperature & salt throughout the ocean

  2. All answer choices are accurate

  3. It drives CO2 gas exchange with the atmosphere

  4. Density differences make it the "mixer of the deep oceans"
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Antarctic Circumpolar Current is a critical driver of global climate, influencing heat distribution, carbon exchange, and deep ocean mixing.

Multiple choice

An important example of a "positive feedback loop” in the polar climate system is:

  1. Scientists in remote places check on each others instruments

  2. Warming ocean water opens new areas for marine species

  3. Warmer winters cause more plant growth, providing more food

  4. Sea ice melt opens more ocean to sunlight, causing more melt
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A positive feedback loop occurs when a change leads to an effect that amplifies the original change. Melting ice reduces albedo, which absorbs more heat, causing more melting.

Multiple choice

Antarctica’s Adelie penguin are negatively impacted by Earth's warming climate because:

  1. Loss of sea ice near the peninsula affects their food, krill

  2. Rain falls instead of snow, freezing the feathers of chicks

  3. Warming causes chicks to hatch before food is available

  4. All answer choices are accurate
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Adelie penguins face multiple threats from climate change, including food source depletion, habitat loss, and reproductive failure due to changing weather patterns.

Multiple choice

Which of the following would NOT be an effect of global warming?

  1. farmer in former cool areas would be able to plant new crops

  2. regional climates may be altered

  3. polar ice caps would increase in size

  4. increase in hurricane intensity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Global warming causes polar ice caps to melt, not increase in size. The other options are known potential consequences of a warming climate.

Multiple choice

Increased carbon dioxide may cause global warming by 

  1. reflecting sunlight from Earth's surface

  2. trapping more heat in the atmosphere

  3. reducing the amount of oxygen in the air

  4. allowing more sunlight into the atmosphere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbon dioxide is a greenhouse gas that absorbs infrared radiation. This traps heat in the atmosphere that would otherwise escape into space.

Multiple choice

Which factor is a major cause of global warming?

  1. increased burning of fuels

  2. increased number of green plants

  3. decreased mineral availability

  4. decreased carbon dioxide in the atmosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Burning fossil fuels releases large amounts of carbon dioxide, a greenhouse gas that traps heat in the atmosphere, leading to global warming.

Multiple choice

Global warming has been linked to a decrease in the

  1. size of the polar ice caps

  2. temperature of the Earth

  3. rate of species extinction

  4. rate of carbon dioxide production
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Global warming causes rising temperatures, which lead to the melting of polar ice caps and glaciers.

Multiple choice

Damage to the ozone shield over the United States is likely to cause

  1. increased warming of local ecosystems

  2. increased exposure to ultraviolet light

  3. reduction in the pH of acid precipitation

  4. reduction in the frequency of floods and droughts
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The ozone layer acts as a shield against ultraviolet (UV) radiation. Damage to this layer results in higher levels of UV light reaching the Earth's surface.

Multiple choice

Which of the following can be impacted by El Nino?

  1. fish industry

  2. weather

  3. farming industry

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

El Nino is a climate pattern that significantly alters global weather, which in turn impacts agriculture, fishing industries, and various other sectors.

Multiple choice

Which of the following was a result of climate change during the High Middle Ages?

  1. unlivable temperatures throughout Europe

  2. increased food production

  3. social unrest

  4. decreased population
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A period of warming known as the Medieval Warm Period allowed for longer growing seasons and improved agricultural techniques, leading to a significant increase in food production and population growth.

Multiple choice

An increase in the amount of carbon dioxide results in

  1. winter season

  2. global warming

  3. rainfall

  4. all of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbon dioxide is a greenhouse gas. An increase in its atmospheric concentration traps more heat, leading to an overall rise in the Earth's average temperature, a phenomenon known as global warming.

Multiple choice biology global environmental change causes of greenhouse effect greenhouse effect pollution and its effects

Which of the following is correct regarding 'El Nino' effect?

  1. Temperature rise leads to odd climatic changes

  2. Cutting down the use of fossil fuels

  3. Planting more trees

  4. Slowing down the growth of human population
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The rise in temperature due to global warming is leading to deleterious changes in the environment and resulting in odd climatic changes like EL Nino effect. El Nino effect is the abnormal warming of surface ocean water. It affects the weather in large parts of the world. Moisture carrying capacity of air will increase. Pattern of air-mass movement will change. Precipitation will increase at higher latitudes both in summer and winter and in southern as well as Eastern Asia in summer. Frequency of droughts and floods  will increase. Threat to human health will increase in tropical and subtropical countries due to changed ranges of disease vectors and water borne pathogens.
So, the correct answer is 'Temperature rise leads to odd climatic changes'.