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Nataly [62]
3 years ago
7

Which process do scientists think provided Earth with an oxygen-rich atmosphere?

Geography
2 answers:
zaharov [31]3 years ago
8 0

Answer:

photosynthesis

So how did Earth end up with an atmosphere made up of roughly 21 percent of the stuff? The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen.

Explanation:

MrMuchimi3 years ago
4 0

Answer:

photosynthesis

Explanation:

Photosynthesis: Is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

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The Sun, our star, will eventually __ and become a __.'
Olenka [21]

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The sun, our star, will eventually die and become a white dwarf.

Explanation:

When a star dies it goes through a process in which it is called "The lifecycle of a star."

If the sun were to go theough this process and die out, it would eventually reach to the point it can either be a white or black dwarf, but there is more of a possibillity of it becoming a white dwarf than a black dwarf.

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North America is a producer of coal, used in energy production; bauxite, used to create aluminum; iron and copper, both used in construction; and nickel, used to create steel. Gold and silver mines operate in the western part of the continent.

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The San Andreas fault is a strike-slip fault. What type of plate boundary is
zalisa [80]

Answer:

It is classified as a right lateral (dextral) strike-slip fault. Although both plates are moving in a north westerly direction, the Pacific Plate is moving faster than the North American Plate, so the relative movement of the North American Plate is to the south east.

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The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizontal).

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Which is the second tallest mountain in the world? and tell me it's height.​
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the second highest mountain in the world is K2 and it is 28,251 feet tall

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