Answer:
carbon residence time in the atmosphere = 3.5 year
and net flow of atmosphere is +4 Gt per year
carbon residence time in the deep sea is 357.8 years.
and net flow of the ocean is +3 Gt per year
Step-by-step explanation:
turnover time
when average time spent on carbon is the reservoir known as its turnover or residence time.
as Increasing in carbon dioxide level in atmosphere it also increase insulation and adversely affect the health of atmosphere which contribute to global warming
so to get residence time we will divide the total flux by number of gigaton of carbon in single reservoir.
as in atmosphere case
total carbon atoms is 750 Gt
and total flux is 215 Gt
(110 Gt from sea and 110 Gt from Earth's surface / Earth).
Above 750 Gt divide 215 Gt / yr
carbon residence time in the atmosphere = 3.5 year
and net flow of atmosphere is +4 Gt per year
and
as total amount of carbon in deep seawater = 38000 g
so time for Carbon in the deep sea = 38000 Gt ÷ 106.2 Gt / year
time = 357.8 years
so carbon residence time in the deep sea is 357.8 years.
and net flow of the ocean is +3 Gt per year