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kupik [55]
3 years ago
14

"Ozone is a pollutant in the __________, but is beneficial in the __________. Select one: a. stratosphere; thermosphere b. therm

osphere; troposphere c. ionosphere; thermosphere d. troposphere; stratosphere"
Geography
1 answer:
tensa zangetsu [6.8K]3 years ago
7 0

Answer:

D. troposphere; stratosphere

Explanation:

The ozone layer is a region in the upper part of the earth that is rich in ozone content (three molecules of oxygen or trioxygen O3). This layers extends as a blanket over the earth's globe as it absorbs the dangerous ultraviolet radiation from the sun preventing it from reaching the earth surface.

Ozone is a potential air pollutant when found in the ground level of the earth, the troposphere. It causes greenhouse gases, contributes to climate change and global warming threatening the health of living things at this region. However, Ozone is useful in the stratosphere where it helps in trapping incoming radiation from the Sun that would have been harmful to life on the earth.

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4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete
olga nikolaevna [1]
4 men x 8 days = 32 days work content & 6 women x 8 days = 48 work content

6 women at 1/400 per day x 8 days is 48/400. 352+ so 1 mans daily output is 11 work units per day x 4 men = 44 work output per day x 8 days = 352 total work output

3 men x 10 days = 30 days work content & 7 women x 10 days = 70 work content
1 man work output is 11 x 3 men x 10 days = 333 work units

one woman’s work output is 1/400 per day x 7 women = 7/400 per day x 10 days = Total of 70 work output plus men’s output of 330 = 400 work units.

10 women x 40 days = 400 work content

so if 10 men carried out the work its 11 x 10 men = 110 work units per day

400 work units + 110 work units per day = 3.6363 days work for 10 men.

1 women daily work output = 1/400 unit per person x 10 women or 10/400 work units per day so 10 x 40 days

4 Men & 6 Women = 8 days (men = 4 x 8 x 11 = 352)( 6 x 8 x 1/40 = 48/40
3 Men & 7 Women=10 days (men = 3 x 10 x 11 = 330)(7 x 10 x 1/40 =70/40)
10 women at 1/400 each per day x 40 days is 400 work units

while 10 men x 11 units is 110 units per day so for 400 units it’s 3.6363 days

1 man is equal approximately to 11 Women

10 men can do job in 3.6363 days x ratio of 11 =

Answer: It will taken 10 women x 40 days to complete the same job.
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