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Rudik [331]
3 years ago
8

8. Analysis of a basalt rock sample shows that 12.5% of its radioactive potassium-40 remain undecayed.

Biology
1 answer:
Rom4ik [11]3 years ago
4 0
Most of the Moon's basalts erupted between about 3 and 3.5 billion years ago, but the oldest samples are 4.2 billion years old, and the youngest flows, based on the age dating method of crater counting, are estimated to have erupted only 1.2 billion years ago.
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What is true of a physical change
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The correct matches are:

Grains - Rice

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Roots and tubers - Carrots

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Oil seeds - Sunflower

The oil seeds are thin relatively high grass-like plants. They produce flowers that have oil rich seeds. They are used for producing oil in general. These plants include the sunflower, canola, sesame...

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8 0
3 years ago
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Someone plzz answer this i need the answer to.  

Explanation:

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