4th Quarter Final Exam

Plants give off water from their stomata in a process called

Ammonia is a usable form of an atmospheric gas that bacteria in the soil fix as part of the

_______ such as rain, snow, and sleet is part of the _____

As part of the ____, plants use carbon dioxide and give off oxygen into the atmosphere. Photosynthesis and _____ are important processes in this cycle.

Cold temperatures high in the atmosphere cause the ____ of water vapor.

After the _____ of liquid water on Earth's surface, water vapor rises into the atmosphere.

Fill in the concept map using terms from the following:

condense

precipitation

clouds

evaporate

water vapor

The environment stores many materials. The atmosphere stores a lot of---

• nitrogen gas

• oxygen

• water vapor

• carbon dioxide

When nitrogen is fixed, it is---

• dissolved in water

• removed from lightning

• changed into a usable form

• made into a protein

Most of the oxygen in the air comes from photosynthesis in ---

• rain forests

• the oceans

• the soil

• lakes and rivers