Human Effects on the Environment

Front

What is the current estimated human population on Earth?

Back

Approximately 7.8 billion.

Front

What percentage of people recycle according to the Environment Protection Agency?

Back

34%.

Front

How have humans impacted the Earth? Fill in the blank: Humans __________ impacted the Earth in many ways, including overpopulation, pollution, deforestation, etc.

Back

Negatively.

Front

What is one positive impact humans have made on the environment?

Back

Cleaning lakes.

Front

True or False: Humans have impacted ecosystems in both positive and negative ways.

Back

True.

Front

What is overpopulation?

Back

Overpopulation occurs when the number of people exceeds the resources available to sustain them.

Front

Define pollution.

Back

Pollution is the introduction of harmful substances or products into the environment.

Front

What is deforestation?

Back

Deforestation is the clearing of trees from forested areas, often resulting in damage to the quality of the land.

Front

What does biodiversity mean?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms and their physical environment interacting as a system.