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patriot [66]
2 years ago
13

How is nitrogen returned to the atmosphere during the nitrogen cycle? a. it is returned to the atmosphere in a process called ni

trogen fixation. b. it is returned to the atmosphere through denitrification. c. it is returned to the atmosphere through cellular respiration. d. it is returned to the atmosphere through evapotranspiration. please select the best answer from the choices provided a b c d
Biology
1 answer:
AlladinOne [14]2 years ago
5 0

Nitrogen is returned to the atmosphere during the nitrogen cycle in a process referred to as denitrification.

<h3>What is denitrification?</h3>

It is a process whereby nitrogen becomes mineralized from nitrogenous compounds. In other words, it is the reduction of nitrates to produce elemental nitrogen which is returned to the atmosphere.

Denitrification is a microorganisms-driven process. The nitrates are made to pass through a series of reactions with intermediate products before finally leading to the production of elemental nitrogen.

More on the denitrification process can be found here: brainly.com/question/13624886

#SPJ4

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Phosphorus in rivers can lakes sinks to the bottom and over thousands of years becomes ______ again.
pshichka [43]

Your question isn't the most clear, but I think your answer is rocks, or more specifically phosphorous rich rocks because the phosphorous will mix with the sediments on the river's/lake's ground forming phosphorous rich rocks.

That means that It'll become a phosphate mineral and later become phosphorous again when the minerals weather.



Hope it helped,



BioTeacher101

5 0
3 years ago
Continental drift states that continents moved ____ to their current location
Ahat [919]
<h3>Slowly</h3>

Wegener proposed the hypothesis of continental drift, which suggested that continents are in constant motion on the surface of Earth. Over time Pangaea began breaking apart, and the continents slowly moved to their present positions.

<h3>What is Continental Drift ?</h3>

The theory of continental drift is most associated with the scientist Alfred Wegener.

  • Wegener's continental drift theory introduced the idea of moving continents to geoscience. He proposed that Earth (opens in new tab) must have once been a single supercontinent before breaking up to form several different continents.

  • The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.

Learn more about Continental Drift here:

brainly.com/question/7350119

#SPJ4

4 0
1 year ago
Which of these best describes the process by which these organisms<br> obtain energy ?
katrin [286]
I think its anaerobic respiration
3 0
3 years ago
What factor is described as sexual
mr Goodwill [35]

Answer:

The correct answer is - D. natural selection.

Explanation:

Sexual selection takes place due to competition between individuals of the intraspecies same-sex and of mate choice which driving the evolution of reproductive traits.

Sexual selection is a mode of natural selection as it leads to the evolution of specific traits. Other examples or options are not related to sexual selection directly and are not affected by sexual selection.

6 0
2 years ago
What allows people to see objects?<br><br> radio waves<br><br> glass<br><br> X-rays<br><br> light
Anton [14]
Answer: light

Explanation:
8 0
3 years ago
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