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matter cycled

Authored by Pablo Garcia

Biology

9th Grade

Used 7+ times

matter cycled
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

The carbon cycle

The water cycle

The nitrogen cycle

The phosphorous cycle

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the human body return carbon to the atmosphere in the carbon cycle?

Waste products

Photosynthesis

Cellular respiration

Formation of glucose

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the carbon cycle, animals can release carbon back into the cycle through __________ or through __________.

burning . . . photosynthesis

fixation . . . decomposition

decomposition . . . photosynthesis

respiration . . . decomposition

respiration . . . photosynthesis

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a forest fire occurs, what will happen to the carbon in the forest?

It will go into the soil

It will go into the atmosphere

It will runoff into nearby streams and rivers

It will be destroyed

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What kind of organism takes out the most carbon from the atmosphere?

Plants

Bacteria

Animals

Humans

6.

MULTIPLE CHOICE QUESTION

1 min • 20 pts

oxygen is a gas produced by _ and used by  _ 

plants and animals 
photosynthesis and carbon dioxide 
animals and plants 
carbon dioxide and photosynthesis

7.

MULTIPLE CHOICE QUESTION

1 min • 20 pts

All of the carbon in existence is continually recycled in the carbon cycle

True
False

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