Env Sys Unit 1 Flashcards

Front

Which of the following are the basic units of matter?

Back

atoms

Front

Which of Earth's spheres encompasses all of Earth's water?

Back

the hydrosphere

Front

The crust, mantle, asthenosphere, and core are all parts of Earth's ____.

Back

geosphere

Front

An organism that must get nutrients by eating other organisms is called a ____.

Back

consumer

Front

The phosphorus cycle involves mainly the _________.

Back

lithosphere and hydrosphere

Front

Eutrophication of a body of water is often caused by the addition of _____.

Back

phosphorus and/or nitrogen

Front

Nitrogen fixation can be accomplished naturally either by a lightning strike or by ____________.

Back

nitrogen-fixing bacteria

Front

Day-to-day conditions in Earth's atmosphere, such as "sunny and humid," describe _________.

Back

weather

Front

T or F: Most decomposers make their own food by photosynthesis.

Back

False

Front

T or F: Photosynthesis and cellular respiration can be considered the chemical reverse of each other.

Back

True