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JulsSmile [24]
3 years ago
10

Explain how heat built up when Earth first formed. Speculate on how it might be sustained.

Geography
1 answer:
Dovator [93]3 years ago
7 0
The Earth has a long history that stretches back over 4.6 billion years ago when bodies of rock began to collide together and form larger rocks in the process. The Earth was the product of these rock collisions, and when the Earth was formed into a planet it was extremely hot for several reasons.

Internal pressure helped to raise temperatures from the gravitational contact of these large rock collisions. There were also large amounts of radioactive elements early in the history of our planet that released heat through radioactive decay. The other reason is tied into the first, with multiple rocks and asteroids were colliding with Earth and these large bodies traveled at tremendous speeds through space which created immense heat on impact with Earth.
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The mathematical system in Mesopotamia was based on the number 7. O True False
Anuta_ua [19.1K]

It is false that the mathematical system in Mesopotamia was based on the number 7. O.

<u>Explanation:</u>

The mathematical system is Mesopotamia was based on the number 60 at it's base and not on 7. This numeral system is known as sexagesimal which had 60 at it's base.

This originated in the 3rd millennium BC and passed on to the ancient Babylonians and it is still used for measuring angles, times, geographic co ordinates. Since the statement that the mathematical system in Mesopotamia was based on number 7 is incorrect.

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3 years ago
One complete revolution of Earth around the sun takes about
pogonyaev
It takes about 365and 1/4 days
8 0
3 years ago
Help me please please
Vesnalui [34]

Answer:

In my opinion Alexander was Great, not only for his time, but in general in history.

Explanation:

Alexander the Great as history remembers him is one of the greatest generals and leaders not only of his time but in the history of humankind.

During his reign he created the largest Empire the world has seen until then. Not only that he created a vast empire, but he also managed to unify it through cultural means. He believed that the country he was ruling in should respect all differences and cultural diversity.

He was Great because his ideas were in front of his time, he was Great as a rule, he was great as a General.

7 0
2 years ago
Which observation about the Mid-Atlantic Ridge region provides the best evidence that the seafloor has been spreading for millio
SSSSS [86.1K]

Answer:

D. Seafloor bedrock is younger near the ridge and older farther away.

Explanation:

In a divergence boundary oceanic plates or continental plates move apart. The plates moves apart causing an uprising of molten magma to form a new crust. The divergent movement of plate is very prevalent in the oceanic plates.

The plates in the oceanic crust moves apart due to the up welling of aesthenosphere materials . These aesthenosphere materials(molten magma) are introduce to the ocean floor through the mid oceanic ridge . As this materials are introduced through cracks and fissures, the plates continue to drift apart. The molten magma later solidified to form a new crust closer to the oceanic ridge.  This is why sea floor bedrock closer to the ridge is younger as new rocks are formed here. But as one move farther away from the ridge the rocks become older. This phenomenon provide ample evidence that the seafloor is spreading. The older rocks found father away from the ridge proves the seafloor has been spreading given way for new rocks closer to the ridge.  

7 0
3 years ago
What island in the north atlantic ocean formed over a hotspot?
Karo-lina-s [1.5K]

Answer:

Azores hotspot

Explanation:

The Azores hotspot is a volcanic hotspot located at the Azores in the Northern Atlantic Ocean.

8 0
3 years ago
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