Earth Science 4.1

What is a gas that people and animals breathe to help them convert food into energy?

• oxygen

• carbon dioxide

• nitrogen

Tags

NGSS.MS-LS1-6

What is a gas that is released into the air and soil during the processes of breathing and decomposition?

• oxygen

• carbon dioxide

• nitrogen

Tags

NGSS.MS-LS2-3

What is the process of using water, sunlight, and carbon dioxide to make sugar and oxygen?

• atmosphere

• the water cycle

• photosynthesis

Tags

NGSS.MS-LS1-6

What is the process of breaking down living things?

• decomposition

• photosynthesis

• the water cycle

What is a gas that is needed by living organisms to build protein and DNA and is used by plants during photosynthesis

• oxygen

• carbon dioxide

• nitrogen

What is the purpose of the earth's atmosphere?

• it provides water for the earth

• it protects the earth from the sun and is the air we breathe

• it is the system of living and nonliving things

How do oxygen and carbon dioxide cycle through plants and animals?

• Plants give off oxygen. Animals & people inhale oxygen & exhale carbon dioxide

• Plants give off carbon dioxide. Animals & people inhale carbon dioxide & exhale oxygen

• Plants give off nitrogen. Animals & people inhale nitrogen & exhale carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How do most animals get nitrogen?

• by eating animals

• by eating plants

• by inhaling nitrogen

The airyou are breathing is part of the ____________.

• atmosphere

• hydrosphere

• biosphere

As you go farther away from the earth into space, the atmosphere becomes __________.

• thicker

• thinner

• more dense