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Len [333]
3 years ago
15

2. What percentage of the Earth's History has man been in existence? (1 point)​

Geography
1 answer:
pochemuha3 years ago
6 0

Answer:

It's answer is somewhere between 0.2•\° and 0.13°\•

Explanation:

there is no date because science hadn't Found out

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maksim [4K]

Answer:

A.

Explanation:

have an good day<333 Stay bless

4 0
2 years ago
Distant supernovae appear fainter than we expect them to for a flat universe. As a result astronomers think we live in a univers
muminat

Answer: is expanding

Explanation:

A supernova is a stellar explosion that occurs as a result of the final stage of a star's life. This event can be very remarkable, even observable to the naked eye. This means that supernovae are characterized by very intense flashes of light that can last from several weeks to several months. In addition, its luminous intensity increases rapidly until it reaches an absolute magnitude greater than the rest of the galaxy, and then gradually loses its brightness until it disappears completely.

Then, a supernova is a very bright element, however, as its distance from the observer is greater, they will be less luminous (look fainter). This is presented as proof that we live in <u>a universe that is expanding</u> and is not flat.

6 0
3 years ago
Which of the following statements explains the position of those who oppose expanding nuclear power plants in the United States?
tino4ka555 [31]
<span>a. There is concern about the disposal of used nuclear fuel rods and the security of the plants themselves.

I hope this helps :)
Good luck!</span>
4 0
3 years ago
Read 2 more answers
_______ refers to a series of vertical zones with distinctive climate and vegetation regimes.
gogolik [260]
<span>The answer is the option C. Altitudinal zonation. Altitudinal zonation is a graph or drawing showing the natural features of ecosystems of mountains at different heights. Several factors affect the ecosystems. On of the most basic and most used is the temperature. The infamous scientist Alexander Von Humbold was first in using the relationship between temperature and the altitude in a mountain in relation with the vegetation. Other factors related with the altitude and the ecosystems are solar radiation, soil composition and humidity.</span>
3 0
3 years ago
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Which statement best describes how physical features contributed to Mesopotamian settlements
GrogVix [38]

Answer:

The physical features contributed to the settlements because they were able to create/make sailboat and the wheel.

Explanation:

they did this because it was a land between two rivers that where tigris and euphrates.

5 0
3 years ago
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