Question

The percentage of carbon dioxide in our atmosphere is a mere fraction of a percent. Give reason.

Answer 1

Answer:

hlo

gud mrng

hru Pranav

here izz ur answer

(≡^∇^≡)

Despite this, the percentage of carbon dioxide in our atmosphere is a mere fraction of a percent because carbon dioxide is 'fixed' in two ways: (i) Green plants convert carbon dioxide into glucose in the presence of Sunlight and (ii) many marine animals use carbonates dissolved in sea-water to make their shells.

Answer 2

Further to Christopher‘s answer that CO2 levels are not kept constant. Prior to the Industrial Revolution, the average levels, if not constant, varied slowly. The atmospheric CO2 wobbles about a lot, with annual rises and falls caused by the seasons, random spikes from volcanic activity and the slow changes over thousands or millions of years as mountain ranges come & go and CO2 is absorbed or released from the rocks or the Milankovitch Cycles dip the planet in & out of ice ages.

It is certainly VERY conspicuous that the dramatic rise in CO2 over the last century or so is waaay different from what should be happening.

• good molning