Nutrient Cycle
Carbon Cycle
Nitrogen Cycle
Phosphorus Cycle
Human Activities
100

Where do nutrients accumulate?

Reservoirs

100
What form of carbon can be found in the atmosphere?
Carbon Dioxide
100
Can all plants take ammonium?
No
100
What is the breaking down of rocks?
Weathering
100
What kind of harmful gas is carbon dioxide?
Greenhouse gas
200
What are chemicals that are required for life processes?
Nutrients
200

What process converts carbon dioxide into sugars and water?

Photosynthesis

200
What process converts nitrogen gas into ammonium?
Nitrogen Fixation
200

Sedimentation will turn phosphate soil into what?

(Phosphate) rock

200
Give two examples of Human Activities that affect the Nutrient Cycle.
Can either be two if the following:?Land Clearing, agriculture, industry, mining, urban expansion, motorized transport, use of chemical fertilizers.
300

What is the continuous flow of nutrients in an ecosystem called?

Nutrient Cycle

300
What process converts sugars back into carbon dioxide?
Cellular Respiration
300
What process converts ammonium into nitrate?
Nitrification
300
How will trapped phosphorus in rocks be released?
By undergoing weathering.
300
Too much carbon dioxide will cause?
Global climate change
400

Where are carbon and nitrogen reservoirs found?

In the atmosphere

400

Decomposition will turn dead carbon-containing plants and animals back into?

Soil

400
What process converts nitrate BACK into nitrogen gas?
Denitrification
400

Decomposition will turn dead phosphorus-containing plants and animals into what?

(Phosphate) soil

400
How do Human Activities create imbalance in the nutrient cycle?
By increasing the amount of nutrients.
500

Where are phosphorus reservoirs found?

Phosphate Rocks

500

Which of the greenhouse gases is part of the Carbon Cycle?

Carbon dioxide

500

True or False: Decomposition will turn dead nitrogen-containing plants and animals back into NITROGEN GAS.

False. It will turn back into Ammonium.

500
What form does phosphorus take when in rocks? ?
Phosphate
500

How does too much phosphorus and nitrogen cause fishes to die?

Too much phosphorus and nitrogen causes overproduction of algae that competes against fishes for oxygen.