Tamara lives in the united states. she has been hospitalized several times due to severe respiratory allergies. ozone affects her condition the most. she enjoys spending time outdoors but is very careful when she steps outside. in which scenario will it be best for tamara to do her outdoor activities? a.) noon in juneb.) 1 pm in octoberc.) 5 pm in juned.) 1 pm in july

B. 1pm in October

Lowest ozone levels ever recorded are in early October and in the pm (noon to 6 pm) air pollutions is at its lowest levels.

The correct answer is B

Explanation:

A) Considering conditions of noon in June US, the summer months experiences the stratosphere layers to become vulnerable due to erosion exposing the livestock, crops to ozone and harmful radiation.

B) 1 pm in October is period when winter sets in so the heat is reduced much wherein the stratosphere is not vulnerable to erosion.

C) 5pm in June is again summer month when the sun's inclination is reduced. But as it is summer, the heat is still prevalent.

D) 1p in July is part of summer period.

From above, we can observe that the best period when Tamara would not be affected by ozone is 1pm in October.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.