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RSB [31]
3 years ago
8

What evidence indicates that the Earth is 4.6 billion years old?

Biology
1 answer:
beks73 [17]3 years ago
8 0

Answer:

In uranium-lead dating, for instance, the radioactive decay of uranium into lead proceeds at a reliable rate. Based on the very old zircon rock from Australia we know that the Earth is at least 4.374 billion years old.

And that's how after rounding we know that earth is 4.5 years old.

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Answer:

social facilitation

Explanation:

This ability or improvement in teh performance of a person when they work in the presence of others is called social facilitation.

The definition was first put forward in 1898 by Norman Triplett; in 1920 psychologist Floyd Allport classified it as social facilitation.

For example, assume your employer has asked you to perform a fairly simple job, such as cleaning up a specific area of work. Social facilitation theory suggests that if there were people watching you when you were working, you'd probably go the extra measures to put it in its place and make the area very clean.

Hence, the correct answer is social facilitation.

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Answer:

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Explanation:

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olga2289 [7]
Kidney, ureter bladder and urethra
6 0
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6. Why do some minerals grow into large, well-defined crystals while others do not?
yan [13]

Answer:

Mineral crystals that form when magma cools slowly are larger than crystals that form when lava cools rapidly. Minerals form when rocks are heated enough that atoms of different elements can move around and join into different molecules.

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Gregor Mendel preformed his experiments by cross-pollinating various types of pea plants. True or False​
andrew-mc [135]

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Yes

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5 0
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