Front

What is the Kyoto Protocol?

Back

An international agreement aimed at reducing greenhouse gas emissions.

Front

What causes air to be more dense near Earth's surface?

Back

Gravity.

Front

What is transpiration?

Back

The process of water evaporating from a plant.

Front

What determines carrying capacity in an ecosystem?

Back

The supply of the most limited resource.

Front

What is the hydrosphere?

Back

The combined mass of water found on, under, and above the surface of a planet.

Front

What is the difference between the geosphere and the lithosphere?

Back

The geosphere includes all the Earth's solid land, while the lithosphere refers specifically to the rigid outer layer of the Earth.

Front

What is the role of the atmosphere in Earth's systems?

Back

The atmosphere provides air for breathing, protects the planet from harmful solar radiation, and helps regulate temperature.

Front

Define biodiversity.

Back

The variety of life in the world or in a particular habitat or ecosystem.

Front

What is an ecosystem?

Back

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

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.