During how many years did the CO2 not exceed 300 ppm?
Ciclo del Carbono y el humano

Quiz
•
Biology, Science, Other
•
5th - 6th Grade
•
Hard

Alejandro Zavala
Used 14+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
5,000,000 years
500,000 years
50,000
5,000
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which is the percentage of CO2 absorbed by the ocean?
80%-90%
70%-80%
50%-70%
30%-50%
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
What parts of the carbon cycle absorb CO2?
The rest of living beings
photosynthesis
Gas absorption by the oceans
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
How much CO2 do the trees store?
14%
35%
53%
19%
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which is the main method by which carbon is absorbed?
by the plants
by the humans
by the rocks
by the oceans
6.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Why are shell builders important to the carbon cycle?
Because they keep the CO2 in the oceans
Because they help biodiversity
Because they are a food supply
Because they transform CO2 gas into oil
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the name of the mass extinction generated by the increase in CO2?
Cambric extinction
Triassic extinction
Permian extinction
Jurassic extinction
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