Question

PLAESE ANSWER FAST!!!!! MAKE SURE IT"S RIGHT

How are humans changing the carbon cycle?

Question 2 options:

Humans are burning carbon and putting it into the atmosphere.


Humans are planting more trees to add more oxygen to to the carbon cycle.


Humans are adding carbon to the Earth by over-farming.

Question 3 (0.2 points)
Three hundred years ago, the amount of CO2 flowing into the atmosphere was equal to the amount flowing out of the atmosphere. This is not true today.

Question 3 options:
True
False
Question 4 (0.2 points)
How does carbon dioxide affect the Earth's climate?

Question 4 options:

While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.


Carbon dioxide mixes with water vapor to take harmful chemicals out of the air.


Carbon dioxide is being added to the soil, which causes weather phenomenon.

Answer 1

(if you have Q1: Carbon is found in: living animals and plants, oceans, rocks, atmosphere, and fossil fuels)

Q2: Humans are burning carbon and putting it into the atmosphere.

Q3: True

Q4: While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.

(and if you have Q5: In the last 250 years, the amount of carbon in the air has increased by 40 percent.)