Earth & Space Unit 4 Final Exam Review

Front

What is the definition of 'population' in an ecological context?

Back

The group of similar organisms inhabiting a particular area.

Front

What characterizes secondary pollutants?

Back

They form through chemical reactions in the atmosphere.

Front

What is one method to conserve energy?

Back

Using energy-efficient appliances.

Front

What must occur before alternative energy sources can replace fossil fuels?

Back

Advancements in alternative energy technologies.

Front

Why are hybrid vehicles more energy efficient than regular vehicles?

Back

They combine gasoline and electric power.

Front

What is an ecosystem?

Back

A community of living organisms and their interactions with the environment.

Front

Define renewable energy.

Back

Energy from sources that are naturally replenished, such as solar or wind.

Front

What is the greenhouse effect?

Back

The warming of Earth’s surface due to trapped heat by greenhouse gases.

Front

What is biodiversity?

Back

The variety of life in a particular habitat or ecosystem.

Front

What is the role of decomposers in an ecosystem?

Back

They break down dead organic material, recycling nutrients back into the ecosystem.