Water Cycle
Soil
Nitrogen Cycle
Pollution
Oxygen Cycle
100

What is the process of water vapor turning into liquid water?

Condensation

100

Name the top layer of soil that contains organic material.

Humus or O Horizon

100

What is the process by which nitrogen gas is converted into a usable form for plants?

Nitrogen Fixation

100

What are the 5 types of pollution?

Air, Water, Soil, Noise, Light

100

What is photosynthesis?

Plants take in carbon dioxide and water and create oxygen and glucose.

200

Name the process by which water moves from the ground to the atmosphere.

Evaporation

200

In what layer would you find bedrock?

Bedrock

200

What is nitrogen fixation?

The conversion of nitrogen gas into ammonia or related compounds in soil.

200

Define air pollution.

Harmful particles and glasses are released into the atmosphere.

200

What is animal respiration?

Animals take in oxygen to break down glucose and create energy, they breathe out carbon dioxide and water.

300

Describe the role of precipitation in the water cycle.

It is the process through which water falls from the atmosphere to the Earth in the form of rain, snow, sleet, or hail.

300

Name three soil layers.

O, A, E, B, C, R

300

What process returns nitrogen to the atmosphere?

Denitrification

300

What is one way humans add to soil pollution?

Deforestation, Waste Disposal, Pesticides, etc.

300

Define the oxygen cycle.

The continuous movement of oxygen through Earth's spheres.

400

What role does transpiration play in the water cycle?

It is the process through which water vapor is released from plants into the atmosphere.

400

What is subsoil and what does it contain?

The layer after topsoil and it contains minerals and nutrients.

400

What organisms are responsible for decomposing nitrogen back into the soil?

Decomposers such as bacteria and fungi.

400

What affect can noise pollution have on animals?

It can disrupt their communication and mating behaviors.

400

Where does most oxygen come from?

Oceans

500

Explain how the water cycle supports life on Earth.

It provides fresh water for drinking, irrigation, and maintaining ecosystems.

500

How does soil work with the water cycle?

It filters out what is in the water to provide clean water for using or drinking.

500

How do animals contribute to the nitrogen cycle?

Animals return nitrogen to the soil through waste and decomposition.

500

How can we help stop water pollution?

Stricter environmental laws. Dump waste appropriately. Etc.

500

How does oxidation occur?

Iron and oxygen cause rust.

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