Water
Carbon
Phoshorous
Sulfur
Nitrogen
100

What is the process called when liquid water turns into water vapor?

Evaporation

100

What gas do plants absorb during photosynthesis?

Carbon dioxide (CO₂)

100

What nutrient is moved through the phosphorus cycle?

Phosphorus

100

Which element moves through the sulphur cycle?

Sulphur

100

Which element is essential for proteins and DNA?

Nitrogen

200

What is the process called when water vapor cools and forms clouds?

Condensation

200

What process releases carbon dioxide when fuels are burned?

Combustion

200

Where is most phosphorus stored naturally?

Rocks

200

What type of rain can result from sulfur pollution?

Acid rain

200

What do farmers often add to soil that can disrupt the nitrogen cycle?

Fertilizers

300

What is the main source of energy that drives the water cycle?

The sun

300

Name one human activity that increases atmospheric carbon.

Desforestation

300

What human activity adds too much phosphorus to waterways?

Fertilizer use

300

Name one activity that releases sulfur into the atmosphere.

Burning fossil fuels

300

 What is the process called when excess nitrogen causes algae blooms?

Eutrophication

400

What is the process called when water falls from clouds to Earth?

Precipitation

400

What environmental issue is linked to excess carbon dioxide?

Global warming

400

What problem occurs when excess phosphorus causes rapid algae growth?

Eutrophication

400

Sulfur is needed to make what important molecules in living things?

Proteins
400

What type of pollution can occur from too much nitrogen in water?

Water contamination

500

Name one way human activities can disrupt the water cycle.

Deforestation, pollution, or climate change

500

Which cycle is closely connected to the carbon cycle because plants release O₂?

Oxygen Cycle

500

Which cycle moves phosphorus through rain and runoff?

Water cycle

500

Which cycle is linked to sulfur because rain transports sulfur compounds?

Water cycle

500

Which cycle is connected to nitrogen because plants use nitrogen to grow and absorb carbon?

Carbon cycle