Respuesta :
Answer:
Residence time = 5000 years
Explanation:
Given that ;
the mass of oxygen in the atmosphere = 1.4 million gigatons = 1.4 × 10⁶ gigatons
Major sources of oxygen to atmosphere include:
Photosynthesis by plants on land = 125 gigatons/yr
Photosynthesis by plants in ocean = 155 gigatons/yr
Total rate of oxygen = (125 + 155) gigatons/yr
= 280 gigatons/yr
the residence time of oxygen in the atmosphere is therefore calculated by the formula:
Residence time = [tex]\frac{mass \ of \ oxygen \ in \ the \ atmosphere }{ rate \ of \ addition \ of oxygen}[/tex]
Residence time = [tex]\frac{1.4*10^6 \ gigatons}{280 \ gigaton/ yr}[/tex]
Residence time = 5000 years
The value of residence time will be 5000 years.The quantity of water in a reservoir divided by either the pace of water addition to the reservoir.
What is residence time?
The amount of water in a reservoir divided by either the rate of water addition to the reservoir or the rate of water loss from it is known as residence time.
The given dsta ion the problem is;
m is the mass of oxygen in the atmosphere = 1.4 million gigatons = 1.4 × 10⁶ gigatons
Photosynthesis by plants on land = 125 gigatons/yr
Photosynthesis by plants in ocean = 155 gigatons/yr
The total rate of oxygen is given by;
R= (125 + 155) gigatons/yr
R== 280 gigatons/yr
The residence time is given by;
[tex]\rm Residence \ time = \frac{mass \ 0f \ oxygen \ in \ the \ atmposphere}{rate \ of \addition \ of oxygen}[/tex]
[tex]\rm Residence \ time = \frac{mass \ 0f \ oxygen \ in \ the \ atmposphere}{rate \ of \addition \ of oxygen} \\\\ \rm Residence \ time = \frac{4 \times 10^{6}}{280 } \\\\ \rm Residence \ time =5000 \ years[/tex]
Hence the value of residence time will be 5000 years.
To learn more about the residence time refer to the link;
https://brainly.com/question/7300543
