Natural Cycles

The precipitation that flows over the surface of the soil is called _____.

• runoff

• photochemical smog

• biogeochemical cycle

• nodule

Tags

NGSS.MS-ESS2-4

A _____ is a swelling on a plant root that contains nitrogen-fixing bacteria.

• runoff

• photchemical smog

• biogeochemical cycle

• nodule

The brown smog produced when air pollutants react with sunlight is called ____.

• runoff

• photochemical smog

• biogeochemical cycle

• nodule

Tags

NGSS.MS-PS1-2

A _____ is the cycling of chemical elements through the living and nonliving parts of an ecosystem.

• runoff

• photochemical smog

• biogeochemical cycle

• nodule

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

When precipitation gathers into a body of water, it is called _____.

• runoff

• collection

• acid precipitation

• photochemical smog

Tags

NGSS.MS-ESS2-4

Which of the following is ot one of the elements most abundant in living things?

• carbon

• helium

• oxygen

• nitrogen

Air pollution can be caused by burning too many _____.

• emissions

• fossil fuels

• nodules

• legumes

A pollutant released into the atmosphere is _____.

• an emission

• a nodule

• acid precipitation

• photchemical smog

Releasing nitrogen from the soil back into the atmosphere is called _____.

• nitrogen fixation

• cellular respiration

• denitrification

• photosynthesis

Which process describes how plants make sugar from sunlight, water, and carbon dioxide?

• nitrogen fixation

• cellular respiration

• denitrification

• photosynthesis

Tags

NGSS.MS-LS1-6