Environmental Science Flashcard

Front

What is the role of trees in regulating ecosystems?

Back

Trees regulate ecosystems by contributing to Net Primary Productivity (NPP), absorbing carbon dioxide, purifying air and water, and aiding in soil formation.

Front

What is a surface fire (prescribed burn)?

Back

A surface fire, also known as a prescribed burn, is a controlled fire that burns low-lying vegetation and is easily maintained due to low surface fuel.

Front

What is selective cutting in forestry?

Back

Selective cutting is a sustainable forestry practice where only certain trees are harvested, allowing for the preservation of the overall forest structure and ecosystem.

Front

What are the 5 major environmental problems?

Back

The 5 major environmental problems include biodiversity depletion, water pollution, air pollution, climate change, and deforestation.

Front

Which forest type has the highest Net Primary Productivity (NPP)?

Back

The Tropical Rainforest has the highest Net Primary Productivity (NPP) among forest types.

Front

What is Net Primary Productivity (NPP)?

Back

Net Primary Productivity (NPP) is the rate at which plants in an ecosystem produce net useful chemical energy, after accounting for the energy used in respiration.

Front

What is biodiversity depletion?

Back

Biodiversity depletion refers to the loss of species, genetic diversity, and ecosystem variety, often due to human activities.

Front

What is soil erosion?

Back

Soil erosion is the process by which soil is removed from the Earth's surface by wind, water, or human activity, leading to land degradation.

Front

What is water pollution?

Back

Water pollution is the contamination of water bodies, such as rivers, lakes, and oceans, due to harmful substances or waste.

Front

What is air pollution?

Back

Air pollution is the presence of harmful substances in the atmosphere, which can affect human health and the environment.