Understanding Our Environment

What is the primary cause of climate change?

• Increase in greenhouse gases due to human activities.

• Deforestation without any human impact

• Natural fluctuations in the Earth's climate

• Increased solar activity

Name one major consequence of deforestation.

• Increased air quality

• Enhanced carbon sequestration

• Loss of biodiversity

• More agricultural land

What is the term for the gradual increase in Earth's temperature?

• Global warming

• Ozone depletion

• Greenhouse effect

• Climate change

Identify a common pollutant found in oceans.

• Plastic waste

• Heavy metals

• Oil spills

• Sewage runoff

What is the impact of plastic waste on marine life?

• Plastic waste negatively impacts marine life by causing injury, death, habitat disruption, and toxic contamination.

• Plastic waste is beneficial for marine ecosystems and promotes growth.

• Plastic waste has no effect on marine life whatsoever.

• Plastic waste enhances marine life by providing new habitats.

What does the term 'biodiversity' refer to?

• The variety of life forms on Earth, including species diversity, ecosystem diversity, and genetic diversity.

• The impact of climate change on weather patterns.

• The process of photosynthesis in plants.

• The study of animal behavior in their natural habitats.

How does air pollution affect human health?

• Air pollution negatively impacts human health by causing respiratory and cardiovascular diseases, and can lead to premature death.

• Air pollution improves air quality and promotes better health.

• Air pollution has no effect on human health whatsoever.

• Air pollution only affects plants and animals, not humans.

What is the greenhouse effect?

• The greenhouse effect is caused by the depletion of ozone in the stratosphere.

• The greenhouse effect is the cooling of Earth's surface due to the reflection of sunlight.

• The greenhouse effect refers to the increase in Earth's surface temperature due to volcanic activity.

• The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Name a renewable energy source.

• Hydropower

• Solar energy

• Geothermal energy

• Wind energy

What is the significance of the ozone layer?

• The ozone layer regulates Earth's temperature.

• The ozone layer protects life on Earth by absorbing harmful UV radiation.

• The ozone layer generates oxygen for breathing.

• The ozone layer is a source of greenhouse gases.