Cycles of Matter

Front

What are greenhouse gases?

Back

Gases that trap heat from the sun in the Earth's atmosphere, contributing to the greenhouse effect.

Front

Which gas is NOT a greenhouse gas?

Back

Oxygen.

Front

Where is free nitrogen fixed in plants?

Back

In the nodules on the roots of certain plants, like legumes.

Front

What is an aquifer?

Back

An underground layer of water-bearing rock that can supply water to wells and springs.

Front

How does increased carbon dioxide in the atmosphere affect ocean water?

Back

It increases the acidity of the water.

Front

What is the greenhouse effect?

Back

The process by which greenhouse gases trap heat in the atmosphere, warming the Earth.

Front

Name a common greenhouse gas.

Back

Carbon dioxide (CO2).

Front

What role do decomposers play in the nitrogen cycle?

Back

They break down organic matter, releasing nitrogen back into the soil.

Front

What is the importance of photosynthesis in the carbon cycle?

Back

Photosynthesis converts carbon dioxide into oxygen and glucose, helping to regulate atmospheric CO2 levels.

Front

What is nitrogen fixation?

Back

The process of converting atmospheric nitrogen into a form usable by plants.