NGS Population Dyn. Sec 3: Renewable & Nonrenewable Resources

Front

What is a renewable resource?

Back

A resource that can be regenerated or replaced.

Answer explanation

A renewable resource is one that can be regenerated or replaced naturally over time, unlike non-renewable resources which are finite. This makes the correct choice the one that defines a resource's ability to be replenished.

Front

Which of the following is a nonrenewable resource? Soil, Water, Trees, Coal

Back

Coal

Answer explanation

Coal is a nonrenewable resource because it forms over millions of years from decomposed organic matter and cannot be replenished on a human timescale, unlike soil, water, and trees, which are renewable resources.

Front

What is sustainable development?

Back

Using resources without depleting them or causing long-term harm

Answer explanation

Sustainable development means using resources responsibly, ensuring they are not depleted or harmed in the long term. This approach balances economic growth with environmental protection, unlike the other options provided.

Front

What is soil erosion?

Back

The removal of soil by wind or water

Answer explanation

Soil erosion is defined as the removal of soil by wind or water. This process can lead to loss of fertile land and negatively impact agriculture and ecosystems, making the first choice the correct answer.

Front

How can soil erosion be reduced?

Back

By contour plowing and rotating crops.

Answer explanation

Soil erosion can be reduced by contour plowing and rotating crops, as these practices help maintain soil structure and reduce runoff. Cutting down trees and increasing emissions would worsen erosion.

Front

What is smog?

Back

A haze formed from automobile exhausts and industrial emissions

Answer explanation

Smog is a type of air pollution characterized by a haze formed from automobile exhausts and industrial emissions, making it the correct choice. It is not related to soil erosion, sustainable development, or renewable resources.

Front

What is one way to improve air quality?

Back

Implementing emission control standards

Answer explanation

Implementing emission control standards helps reduce pollutants released into the air, thereby improving air quality. In contrast, increasing fossil fuel use and cutting down trees would worsen air quality.

Front

What is aquaculture?

Back

Raising fish to eat

Answer explanation

Aquaculture refers specifically to the practice of raising fish and other aquatic organisms for food. It is not related to planting trees, air pollution, or soil conservation, making 'Raising fish to eat' the correct choice.

Front

What is one effect of deforestation?

Back

Increased soil erosion

Answer explanation

One effect of deforestation is increased soil erosion. Without trees to anchor the soil, rain can wash away topsoil, leading to loss of nutrients and land degradation.

Front

What is a major source of air pollution? Options: Contour plowing, Burning of fossil fuels, Electric cars, Aquaculture

Back

Burning of fossil fuels

Answer explanation

A major source of air pollution is the burning of fossil fuels, which releases harmful pollutants into the atmosphere. In contrast, contour plowing, electric cars, and aquaculture do not significantly contribute to air pollution.