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Environmental Changes and Impact Analysis Quiz

#1

Which of the following is a greenhouse gas?

Carbon dioxide
Explanation

A major contributor to global warming.

#2

Which of the following is a major contributor to air pollution in urban areas?

Automobile emissions
Explanation

Emitted by vehicles and contributes to smog.

#3

Which gas is responsible for the majority of global warming?

Carbon dioxide
Explanation

Traps heat in the Earth's atmosphere.

#4

What is the primary cause of the hole in the Earth's ozone layer?

Chlorofluorocarbons (CFCs)
Explanation

Degrade ozone molecules in the stratosphere.

#5

What is the primary cause of the phenomenon known as the 'urban heat island'?

Excessive use of air conditioning
Explanation

Increases temperature in urban areas.

#6

What is the main cause of deforestation?

Logging
Explanation

The felling of trees for commercial purposes.

#7

What is ocean acidification primarily caused by?

Greenhouse gas emissions
Explanation

Leads to decreased pH levels in the ocean.

#8

What is the primary cause of the 'ozone hole' in the stratosphere?

Chlorofluorocarbons (CFCs)
Explanation

Break down ozone molecules.

#9

What is the primary source of marine plastic pollution?

Microplastics from cosmetics
Explanation

Tiny plastic particles from personal care products.

#10

What is the primary driver of coral reef bleaching?

Rising sea temperatures
Explanation

Causes stress to coral organisms.

#11

Which of the following is a major source of indoor air pollution?

Cooking stoves using solid fuels
Explanation

Emits harmful pollutants during combustion.

#12

Which of the following is a consequence of ocean acidification?

Harm to marine life with calcium carbonate shells
Explanation

Affects shell-forming marine organisms.

#13

Which of the following is a consequence of eutrophication?

Algal blooms
Explanation

Excessive growth of algae due to nutrient influx.

#14

What is the role of the ozone layer in the atmosphere?

Protects Earth from harmful ultraviolet (UV) radiation
Explanation

Acts as a shield against UV radiation.

#15

Which of the following is a key factor contributing to soil erosion?

Overgrazing
Explanation

Excessive grazing leading to soil degradation.

#16

What is the primary impact of melting ice caps on sea levels?

Increased sea levels
Explanation

Contributes to rising ocean levels.

#17

What is the main impact of biodiversity loss on ecosystems?

Decreased stability
Explanation

Reduces ecosystem resilience.

#18

Which of the following is a consequence of thermal pollution in water bodies?

Decreased oxygen levels
Explanation

Reduces dissolved oxygen content.

#19

Which of the following is a greenhouse gas that has a higher warming potential than carbon dioxide?

Methane
Explanation

More effective at trapping heat.

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