What is the primary characteristic that distinguishes renewable resources from nonrenewable resources?

Renewable resources regenerate naturally.

• Sustainable energy sources exist.

• Nonrenewables are finite resources.

• Renewables reduce environmental impact.

Fill in the blank: Fossil fuels are formed from the remains of ancient organisms through a process called ___.

Fossilization

Explain why groundwater can be considered a renewable resource but is at risk of depletion.

Groundwater is renewable but threatened.

• Replenished by rainfall.

• Excessive extraction risks depletion.

• Lower water table impacts supply.

True or False: Deforestation has no impact on carbon dioxide levels in the atmosphere.

False. Deforestation increases carbon dioxide levels in the atmosphere, contributing to climate change.

Riddle: I flow beneath the ground and quench your thirst, though you rarely see me, my value is vast. What am I?

Groundwater

What are the four main types of fossil fuels, and how do they differ in formation?

Fossil fuels differ in formation.

• Coal forms from land plants.

• Oil comes from marine organisms.

• Natural gas forms under unique conditions.

Fill in the blank: The process by which minerals are extracted from the Earth is called ___.

Mining

Describe how the water cycle contributes to the availability of freshwater resources.

The water cycle replenishes freshwater resources.

• Evaporation turns water into vapor.

• Condensation forms clouds from vapor.

• Precipitation delivers water to land.

Multiple Choice: Which of the following is NOT a characteristic of nonrenewable resources? A) They can be replenished within a human lifetime. B) They are formed over geologic timescales. C) They exist in fixed amounts. D) They cannot be replaced after use.

A) They can be replenished within a human lifetime.

What is one major environmental impact of mining activities?

Mining activities can lead to habitat destruction, soil erosion, water pollution, and air pollution.