What are the main gases in Earth's lower atmosphere?

Question

a. nitrogen and oxygen

b. oxygen and carbon dioxide

c. carbon dioxide and nitrogen

d. oxygen and helium

Salinity tends to be above average

a. in areas of high precipitation

b. where large rivers enter the ocean

c. where icebergs are melting

d. in hot areas.

oceanography involves numberous scientific fields including

a. physics

b. biology

c. geology

d. all of the above

the study of prehistoric life is called

a. biology

b. paleontology

c. mineralogy

d. geology

the corilois effect is greatest

a. near the poles

b. near the equator

c. in the northern hemisphere

d. in the southern hemisphere

Answer 1

carbon dioxide and oxegen

Answer 2

1) a.

2) b. i think

3) d.

4) b.

5) not sure

Answer 3

1a

2d..... hot areas have greater evaporation... which leads to greater salinity....

3d

4b

5b

those are correct.

Answer 4

What are the main gases in Earth's lower atmosphere

a. nitrogen and oxygen

Salinity tends to be above average

b. where large rivers enter the ocean

oceanography involves numberous scientific fields including

d. all of the above

the study of prehistoric life is called

a. biology