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GaryK [48]
4 years ago
10

Explain the composition of atmosphere

Geography
1 answer:
wel4 years ago
8 0

Answer:

The atmosphere is composed of a mix of several different gases in differing amounts. ... Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

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What describes the difference between a source and a mouth
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Every river and it's flow has source and mouth: source is the part of the flow of the river- the place where the river starts and mouth is the part where the river flows into a sea or lake.
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Why was Jefferson chosen as the primary writer of the declaration of independence
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Is silver nonrenewable or renewable
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GL!
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9. Which of the following is a primary consumer in the Newfoundland oceanic ecosystem? A) Shearwaters B) Penguins C) Capelin D)
bagirrra123 [75]

Answer:

9.) <em>Humpback Whales</em>

10.) <em>Phytoplankton.</em>

11.) <em>Sotronger upwelling winds</em>

Explanation:

9.) A primary consumer feeds on primary producers, of all the options given Humpback Whales, are the only ones meeting the criteria in the options given since they feed with plankton (a primary producer).

10.) Phytoplankton are the base of the Southern Antarctic Ocean trophic chain. In the nutrient-rich upwelling zone waters, they can reach huge blossoms and are far more common than other forms of zooplankton in this zone.

11.) The productivity of this ecosystem is influenced by the seasonal cycle of the upwelling winds, these peak during the months of December and January, carrying more nutrients and allowing trophic networks to work more efficiently and actively allowing for more productivity.

3 0
3 years ago
How does the elastic-rebound theory explain the occurrence of earthquakes? Choose one: A. Colliding rocks cause kinetic energy t
VashaNatasha [74]

Answer:

The elastic-rebound theory explain the occurrence of earthquakes in b. When bending rocks fail, stress energy is released in the form of earthquakes.

Explanation:

The energy released as earthquakes result from when bending rocks fail and there is a rupture from the fault line. Because earthquakes are sudden movements from ruptures, the answer a is not correct. c. is also not correct because it is not the surrounding crust that vibrates but the crust is divided between two moving plates. d is also not correct because the opposite rocks are under sheer stress and the energy released is a stress energy, not a tension energy.  

8 0
3 years ago
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