AP Environmental Exam

Front

What are the two energy sources that together provide more than 50% of the energy needs of the United States?

Back

Petroleum and natural gas.

Front

Which act mandates the restoration and maintenance of the chemical, physical, and biological integrity of the nation's waters?

Back

Clean Water Act.

Front

What are factors that affect a population depending on its size, including food, predation, parasitism, and disease?

Back

Density-Dependent factors.

Front

What is humus?

Back

The dead parts of plants and animals in soil.

Front

What are horizontal layers of soil called?

Back

Soil horizons.

Front

What is the primary source of energy for electricity generation in the United States?

Back

Natural gas.

Front

What is the purpose of the Safe Drinking Water Act?

Back

To protect public health by regulating the nation's public drinking water supply.

Front

What is the difference between density-dependent and density-independent factors?

Back

Density-dependent factors are influenced by population size, while density-independent factors affect populations regardless of size.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic material, returning nutrients to the soil.

Front

What is biodiversity and why is it important?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, and it is important for ecosystem resilience and stability.