Unit 5: Ecology and Environmental Science Test Review

Front

What human activity can help reduce carbon dioxide levels in the atmosphere?

Back

Decreasing the burning of fossil fuels.

Front

Which two energy sources provide more than 50% of the energy needs of the United States?

Back

Oil and coal.

Front

Name an animal that is on the endangered list.

Back

Malayan Tiger.

Front

How can invasive species harm a community?

Back

They may have no natural predators, compete for resources with native species, and cause an imbalance in the ecosystem.

Front

What is the effect of reduced biodiversity in crops?

Back

It makes the crops more vulnerable to plant pathogens.

Front

Define 'biodiversity'.

Back

The variety of life in a particular habitat or ecosystem.

Front

What is an invasive species?

Back

A non-native species that spreads widely in a new habitat and causes harm to the environment.

Front

What is the significance of recycling programs?

Back

They help reduce waste and lower carbon emissions by reusing materials.

Front

Explain the term 'carbon footprint'.

Back

The total amount of greenhouse gases produced directly and indirectly by human activities.

Front

What role do predators play in an ecosystem?

Back

They help control the population of prey species, maintaining balance in the ecosystem.