Answer:
a. In a mineral the constituent atoms are bonded in a regular, repetitive, internal structure; a rock is a lithified or consolidated aggregate of different mineral grains.
Explanation:
In the internal structure of a mineral the atoms are arranged in an orderly manner, forming shapes that are repeated throughout the structure.
Rocks are a mixture of other materials consolidated in one, which include minerals.
So the minerals have a defined internal structure with atoms in a regular and repeated configuration, while a rock, being a consolidated aggregate, combination of other materials including minerals, does not have a structure that defined
<span>They should all be eukaryotic.</span>
Uranium-235 would be more useful for dating in Cambrian time because Cambrian time was 540 million years ago while the half life of carbon-14 is only 5,730 years
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