Carbon Cycle
Nitrogen Cycle
Phosphorus Cycle
Water Cycle
Bonus questions
100

What other Sphere other than the Atmosphere, Biosphere and Hydrosphere does Carbon come from?

What is the Geosphere?

100

How does nitrogen from the air get into the soil so plants can use it?


Special bacteria change nitrogen gas into a form called nitrates that plants can take in through their roots.

100

In which part of Earth's major biogeochemical systems is phosphorus not typically found, since it does not form gaseous compounds


Atmosphere

100

This is the process of turning water into vapor in the air.

What is evaporation?


100

Where does Denitrification occur?


In low oxygen conditions

200

What is the chemical symbol for Carbon 


C

200

Why is nitrogen important for living things?




It helps plants and animals grow because it’s needed to make proteins and photosynthesis for plants and DNA and protein for animals



200

This process, involving the gradual breakdown of rocks, releases phosphate ions into soil and water, marking the start of the phosphorus cycle


Weathering


200

This process occurs after precipitation, which ends with water/snow that flows over the ground.

What is Surface Runoff?

200

What is Nitrogen Fixation?

When certain bacteria convert nitrogen gas from the air into forms that plants can use, like ammonia.

300

How do humans play a role in Carbon (Name at least 1) 


Burning Fossil fuels, Extracting Fossil fuels from the ground

300

What is the nitrogen cycle?

 

The process of how nitrogen moves through the air, soil, plants, animals, and back to the air again. 


300

List what  phosphorus are essential elements in forming which critical biological molecule?


DNA,ATP, and RNA

300

This process happens after precipitation, when water or snow flows over the ground.

 Surface runoff

300

What is Aerobic Respiration?


When plants and animals use glucose and oxygen to make carbon dioxide, water, and energy.

400

Where did the 45% of extra carbon dioxide go that was not absorbed by plants or oceans?


Stays in the atmosphere

400

What are two ways nitrogen gas can be changed into a form plants can use?


By bacteria in the soil and by lightning

400

When organisms die, decomposers convert organic phosphorus into this form, which can be absorbed again by plants.


Iorganic phosphate

400

The process when water soaks into the soil and moves underground.

What is Infiltration

400

What is Calcium Carbonate 


When carbon ions combine with calcium ions and form Calcium Carbonate

500

True or False Can Carbon capture and Store technologies reduce emissions effectively without distracting from other climate solutions?


False

500

Describe the full path of nitrogen in the nitrogen cycle.


Nitrogen starts in the air. Then goes into the soil so plants can use it. Next, the animals eat the plants. When plants and animals die, bacteria break them down and nitrogen returns to the air.

500

Weathering of rocks, decomposition of dead organisms, and even guano bat and bird droppings that were used as fertilizer in the past. 

What role do these things have in the Phosphorus cycle?

What are Sources?
500

True or False: Most of the water that enters the atmosphere from plants comes from the roots rather than the leaves.

False

500

Explain the role of nitrifying bacteria in the nitrogen cycle.


Nitrifying bacteria convert ammonia into nitrites and then into nitrates, which plants can absorb to make proteins.


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