Copy*1st Semester Science Test

Front

What is infiltration?

Back

Infiltration is the process by which water on the ground surface enters the soil.

Front

What is runoff?

Back

Runoff is the flow of water that occurs when excess stormwater, meltwater, or other sources flow over the Earth's surface.

Front

What is the hydrosphere?

Back

The hydrosphere includes all the water on Earth, including rivers, seas, lakes, and icebergs.

Front

What weather is associated with a high pressure system?

Back

A high pressure system is typically associated with clear skies and calm weather.

Front

What is carbon dioxide?

Back

Carbon dioxide is a colorless gas produced by burning carbon and organic compounds and by respiration.

Front

What process do plants use to absorb nitrogen?

Back

Plants absorb nitrogen primarily through nitrification, where nitrifying bacteria convert ammonia into nitrites and then nitrates.

Front

What is denitrification?

Back

Denitrification is the process by which bacteria convert nitrates into nitrogen gas, returning it to the atmosphere.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting nitrogen gas from the atmosphere into ammonia, which can be used by plants.

Front

What is the difference between the atmosphere and the hydrosphere?

Back

The atmosphere is the layer of gases surrounding the Earth, while the hydrosphere includes all water bodies.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, producing carbon dioxide as a byproduct.