Science

Certain plants host bacteria that 'fix' or convert ____ from the air into a form that other plants and organisms can use.

• hydrogen

• nitrogen

• oxygen

Animals don't use plants for shelter.

• true

• false

• oxygen

Plants are not used by people for recreation purposes.

• true

• false

• oxygen

By removing carbon dioxide from the atmosphere, plants help reduce the greenhouse effect and lessen ____.

• global warming

• pollution

• oxygen

Plants release ____, which humans and other animals need to breathe

• global warming

• pollution

• oxygen

Plants are not a major source of food on Earth.

• true

• false

• oxygen

Plants have nothing to do with Earth's atmosphere.

• true

• false

• oxygen

Gardening is a common human activity for pleasure and recreation.

• true

• false

• oxygen

All of the following are plant wastes that can be included in biomass production except ____.

• wood chips

• manure

• oxygen

Soy sauce is produced using which of the following?

• wood chips

• flat beans

• soybeans