Biogeochemical Cycles

Front

When water vapor is cooled and forms droplets of liquid water

Back

Condensation

Front

Why does precipitation occur?

Back

The droplets are too heavy for the air to hold.

Front

When water turns into a gas

Back

evaporation

Front

What is water that flows in rivers and streams into the oceans and lakes?

Back

runoff

Front

On which kind of day would you expect the most evaporation from the surface of a pond? Options: cold, rainy, cold, sunny, warm, rainy, warm, sunny

Back

warm, sunny

Front

What is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere?

Back

Transpiration

Front

What allows water to stick to particles of dust in the air, thereby condensing to form clouds?

Back

Adhesion

Front

Which process contributes carbon dioxide to the atmosphere? Options: respiration, photosynthesis, protein synthesis, tree farms

Back

respiration

Front

Which process removes carbon dioxide from the atmosphere?

Back

photosynthesis

Front

What organisms form fossils?

Back

plants and animals