3.4 - Cycles of Matter

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

Tags

NGSS.MS-LS2-3

The process in which nitrogen circulates and is recycled is called

• The nitrogen cycle

• The carbon cycle

• The water cycle

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

• nitrogen composition

• nitrogen fixation

• denitrification

Tags

NGSS.MS-LS2-3

Which of the following best explains why nitrogen fixation must take place?

• Atmospheric nitrogen is unusable to plants and animals

• Nitrogen must be returned to the atmosphere

• Animals must breathe in nitrogen

Tags

NGSS.MS-LS2-3

The continuous process by which water moves from Earth's surface to the atmosphere and back

• Nitrogen Cycle

• Carbon Oxygen Cycle

• WaterCycle

Tags

NGSS.MS-ESS2-4

Organism that breaks down dead plants & animals and releases nitrogen back into atmosphere

• bacteria

• plants

• animals

Tags

NGSS.MS-LS2-3

How does phosphorus travel through an ecosystem?

• From the soil to producers and then from producers to consumers.

• From the air directly into consumers and then from consumers to producers.

• Phosphorus cannot travel through an ecosystem.

Tags

NGSS.MS-LS2-3

When humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide.

• Water

• Atmosphere

• Sun

Tags

NGSS.MS-ESS3-5

What is it called when water evaporates from the leaves of plants?

• condensation

• evaporation

• transpiration

What process returns nitrogen back to the atmosphere?

• Nitrogen fixation

• Elimination

• Denitrification

Tags

NGSS.MS-LS2-3