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myrzilka [38]
3 years ago
14

A friend of yours who has not taken an astronomy class suggests that the Sun must be full of burning coal to shine as brightly a

s it does. List as many different arguments that you can come up with against this hypothesis.
Geography
1 answer:
ikadub [295]3 years ago
6 0

Answer:

Sun isn’t made of coal because the Sun and the Earth through radioactive dating of rocks has been known and confirmed to exist for around billions of years which was before the discovery of fossil fuels such as coal.

It should also be noted that the Sun thermal energy is as a result of the nuclear fusion reactions. Hydrogen atoms fuse to become helium as a result of the strong gravitational force which acts on the Sun.

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If the rains fail it can cause<span> drought in addition to natural factors, the land is marginal. Human activities such as overgrazing, overcultivation and the collection of firewood can lead to desertification, particularly when combined with drought conditions. hope this helps and plz rate below :)</span>
7 0
3 years ago
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In the 1980s the northeast region of Brazil received almost no precipitation for how many years?
mihalych1998 [28]

Answer:

3 years

Explanation:

Even there was  a dry year in 1979, the area received almost the normal amount of rain in 1980.

In 1981 however, the year was quite dry, with rainfalls in drop of almost 20%, that began one of the most important drought in the history of Brazil.

In 1982, rainfalls were down by 30% and it got even worse.

In 1983, the rainfalls were down by about 35%, essentially destroying all the agriculture system that had been severely damaged by the two previous years.

In 1984, rain came back a bit higher than its traditional levels, and in 1985, the area was flooded by rain surpassing the average by 60%!

5 0
2 years ago
The headwaters of a river are at an elevation of 1,229 feet and the river flows 373 miles to the ocean. Determine the river's av
AlekseyPX

Answer:

3.29ft/mi

Explanation:

The gradient of a river is the slope through which a river flows. It measures the vertical drop in elevation of river to the horizontal distance.

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Horizontal distance  = 373miles

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8 0
3 years ago
Which part or region of the United States has recently witnessed the largest interregional migration?
sweet [91]

Answer:

A. the south

Explanation:

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Hope this helps!!

5 0
3 years ago
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