PLZ HELP A key component in the nitrogen cycle is the process of (3 points)
sublimation
transpiration
nitrification
evaporation
2.
(01.03 LC)

Which of the following biogeochemical cycles moves water through the atmosphere, surface, and crust of Earth? (3 points)
Carbon cycle
Nitrogen cycle
Phosphorus cycle
Hydrologic cycle
3.
(01.03 LC)

An algal bloom resulting from excess detergent and fertilizer use in the surrounding community is most likely a result of which of the following? (3 points)

Carbonates
Nitrates
Phosphates
I, II, and III
II and III only
I only
I and II only
4.
(01.03 MC)

2N2 + 6H2O → 4NH3 + 3O2 is a key reaction in the (3 points)
phosphorus cycle
carbon cycle
nitrogen cycle
hydrologic cycle
5.
(01.03 MC)

Which of the following is a negative impact that human beings have on the carbon cycle? (3 points)
Human beings increase the amount of oxygen in the carbon cycle.
Human beings decrease the amount of fossil fuels in the carbon cycle.
Human beings increase the amount of carbon dioxide in the atmosphere.
Human beings clean up the carbon cycle by using fewer nitrogen-based fertilizers.
6.
(01.03 MC)

Significant amounts of phosphorus are found in all locations on Earth except the (3 points)
lithosphere
atmosphere
biosphere
ecosphere
7.
(01.03 LC)

Which of the following is an example of a reservoir in the organismic phase of the carbon cycle? (3 points)
The atmosphere
Earth's crust
Limestone
Plant life
8.
(01.03 MC)

How do human beings negatively affect the carbon cycle? (3 points)
Human beings conserve resources, which decrease resources for the carbon cycle.
Human beings use carbon-based pencils, which decreases the amount of carbon dioxide in the atmosphere.
Human beings burn fossil fuels, which contribute carbon dioxide to the atmosphere.
Human beings mine resources, which increases the amount of oxygen available to the carbon cycle.