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Alik [6]
3 years ago
5

The age of fossils can sometimes be determined by radiometric dating is called

Geography
1 answer:
koban [17]3 years ago
5 0

Answer:

17,190 years

Explanation:

Each isotope has a characteristic half-life, which is the time required for half of that isotope to decay. After one half-life has elapsed, 50% of the isotope has decayed and 50% remains. After two half-lives, 75% has decayed and 25% remains. After three half-lives, 87.5% has decayed and 12.5% remains. For carbon-14, which has a half-life of 5,730 years, three half-lives corresponds to 17,190 years.

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What geoscience process changes the earths surface over a short period of time?
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Answer:

Fast changes occur through the actions of Earthquakes, volcanoes, landslides, etc. over short periods of time

hopefully this helps

8 0
3 years ago
Is lake Katwe a solution or crater lake and by which process was it formed?​
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Answer:

It was a crater lake

Explanation:

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2 years ago
What are protozoans <br>Maah friends here<br><br>This one is for you <br><br>Haha ​
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3 years ago
How are rocks DIFFERENT from minerals? A) Rocks are a pure substance and minerals are all mixtures. B) Rocks have no physical or
Elena L [17]

The answer is C) Rocks are made up of one or more minerals, but minerals are not made up of rocks.

Let's look into the options one by one:

A) Rocks are a pure substance and minerals are all mixtures.

-This is false.

-The fact is the exact opposite, where rocks are mixtures of minerals while minerals are pure substance. For example, granite, a type of rock, is composed of quartz, mica and feldspar.

B) Rocks have no physical or chemical properties similar to minerals.

-This is false.

-As rocks are formed by different types of minerals, often can you find the properties of rocks similar to minerals especially when one mineral component is high.

C) Rocks are made up of one or more minerals, but minerals are not made up of rocks.

-This is correct.

-Most of the rocks are made up of more than one type of minerals given the minerals are mixed together or produced during different formation. We can therefore see that minerals are not made up of rocks but a component of rocks.

For example, the granite mentioned from above is formed when intrusive volcanicity occurs, when the magma cools down, more than a type of minerals are formed, putting together forming granite.

D) Minerals are made up of at least two rocks, but rocks are not made up of minerals.

-This is false.

-As from above, minerals are not made up of rocks, while rocks are made up of minerals.

Therefore the answer is C) Rocks are made up of one or more minerals, but minerals are not made up of rocks.

Hope it helps!

4 0
3 years ago
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