<span title="QUESTIONS.....HELP.....ANYONE!!?">QUESTIONS.....HELP.....AN...</span>

Question

What living substance is the nitrogen used to produce?

a. sugars

b. carbohydrates

c. proteins

d. carbon dioxide

What gasses in the atmosphere block out cosmic and gamma rays, thus protecting the Earth from this deadly radiation?

a. H2O, O2

b. CO2, SO2

c. O3, SO2

d. O2, N2

e. O2, O3

Smog is made from what two pollutants?

a. O2, N2

b. CO2, and SO2

c. NO2, SO2

d. H2O,O2

e. O2, O3

Answer 1

Ozone is part of the answers for q 2+3

Answer 2

1) c- protein has nitrogen in its structure while the other three don&#039;t.

2) e- it has O3 which is ozone and is the protective shield. You might say why not &quot;c&quot; as it too has O3 but then it has SO2 which is harmful. Hence  e is right.

3) b - contains the toxic gases carbon dioxide and sulphur dioxide.

Answer 3

1.) C

2.) ? maybe B

3.) E