Question

Why is there an oscillation in the Keeling curve? a. El Niño and La Niña b....

Why is there an oscillation in the Keeling curve?

a.

El Niño and La Niña

b.

The tilt of the Earth

c.

The seasonality of plant growth

d.

a+b+c

e.

b+c

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Answer #1

C. The seasonality of the plant growth

Keeling curve tells about the CO2 concentration in the atmosphere from 1958 to the present. It is a zig-zag type because of the CO2 concentration change. When there is a high CO2 emission and low plant growth there the curve rises and at the opposite condition the curve declines.

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