Question

Environmental Science Questions: MEDAL

Answer 1

1:
The Pangaea theory supports the theory of plate tectonics because:
Select one:
a. it is based on the idea that there were several land masses when Earth was first created.
b. it is based on the idea that all the present continents were one supercontinent.
c. it does not require scientists to support the notion that Earth’s plates can move
d. one day, Earth will have one large land mass again.

Answer 2

2:
Which process is most responsible for the increase in early Earth’s atmospheric oxygen levels?
Select one:
a. Outgassing
b. Condensation
c. Photosynthesis
d. Precipitation

Answer 3

3:
The picture shows a type of rock called a banded iron formation. The rock contains high levels of iron oxides minerals, which form only when iron at Earth’s surface combines with oxygen. Approximately how old would Earth’s oldest banded iron formations be?
Select one:
a. 3 billion years old
b. 4.6 billion years old
c. 5 billion years old
d. 65 million years old

Answer 4

4:
What is the most abundant gas in Earth’s present day atmosphere?
Select one:
a. Methane
b. Oxygen
c. Carbon dioxide
d. Nitrogen

Answer 5

5:
Which statement best describes the exosphere?
Select one:
a. It extends down to sea level.
b. It is the place where meteors burn out.
c. It is the layer where we observe lightning.
d. It is the last layer of the atmosphere before space.

Answer 6

6:
If a small child were to release a balloon into the atmosphere, what would happen to the size of the balloon as it makes it way higher in the sky?
Select one:
a. The balloon would become smaller because the pressure of the surrounding air would crush it.
b. The balloon would become smaller because the air molecules inside the balloon would get closer together.
c. The balloon would become larger because the air molecules on the inside of the balloon would expand.
d. The balloon would stay the same because the pressure inside the balloon is equal to the pressure of the atmosphere.

Answer 7

7:
What implication does destruction of the stratospheric ozone layer have for Earth?
Select one:
a. Decrease in global temperatures
b. Increase in cancers related to sun exposure
c. More sunny days
d. More meteors striking the Earth

Answer 8

@BioEpic
@aryandecoolest
@cwrw238

Answer 9

@ganeshie8

Answer 10

@jgirl128

Answer 11

@cwrw238

Answer 12

2: Precipitation, 4: Nitrogen, 5: I believe is D,