Campbell Biology: Concepts & Connections, Chapter 2- Biochemical cycles

Deforestation

________- decreases the amount of carbon dioxide removed from the atmosphere.

Runoff

________- the movement of precipitation to lakes streams rivers and oceans.

Consumers

________ eat plants & get proteins containing nitrogen.

available oxygen

The ________ gets depleted, fishkills may occur.

Condensation

________- gas to liquid.

Respiration

________- Plants & animals release carbon dioxide back into the air.

Plants

________ can absorb & use nitrates (NO3)- to make proteins.

Decomposers

________ break down dead organisms & return nitrogen to the soil (NH4+) and (NO3)-

NITROGEN

________- needed in proteins and nucleic acids.

Average atmospheric residence time

________: 140- 190 years.

Ozone

________ protects living organisms by absorbing harmful ultraviolet radiation (UVB) from the sun.

Precipitation

________- movement from the atmosphere to the biosphere.

Ozone depletion

________ progressing globally except in the tropical zone.

ozone layer

What is being destroyed by CFCs and other substances? Answer with a single words or term.

Carbon

What is needed to build all organic molecules? Answer with a single words or term.

Average atmospheric residence time

________: 500 years.

Ozone

________ is a triatomic form of oxygen (O3) found in Earths upper and lower atmosphere about 15 to 30 km above the earth's surface.