Human Impacts on Earth Systems

What was the significance of the Blue Marble image taken by Apollo 17 astronauts?

• It made people realize the Earth's finite nature.

• It was the first image of the Moon.

• It showed the Earth as infinite.

• It highlighted the vastness of space.

What is one consequence of not rotating crops in agriculture?

• Increased crop yield

• Soil loss

• Decreased water usage

• Improved soil fertility

How does damming a river impact the hydrosphere?

• It maintains the natural water path.

• It increases water flow.

• It reduces water evaporation.

• It changes the natural path and increases evaporation.

What is a major cause of smog in the atmosphere?

• Deforestation

• Greenhouse gases

• Particles moved into the air by human activities

• Mining activities

What happens to coral reefs as temperatures increase?

• They become more colorful.

• They bleach and affect the food chain.

• They grow faster.

• They become non-renewable resources.

Which country is known for high oil consumption per capita?

• United States

• India

• Brazil

• China

What was a major environmental issue related to chlorofluorocarbons (CFCs)?

• Water pollution

• Ozone depletion

• Soil erosion

• Deforestation

What is a key concept to teach in lower elementary grades about human impact on the environment?

• The necessity of mining

• The importance of industrialization

• The concept of reduce, reuse, and recycle

• The benefits of deforestation

What is a likely future regulation to reduce human impact on the environment?

• Encouraging soil erosion

• Promoting fossil fuel usage

• Increasing deforestation

• Regulating greenhouse gases

Why is it important to create engineers and scientists for the future?

• To increase population growth

• To design sustainable systems

• To encourage deforestation

• To promote fossil fuel usage