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Anni [7]
2 years ago
15

A substance with a hardness of 8 will scratch a substance with a hardness of 7.

Biology
2 answers:
uranmaximum [27]2 years ago
7 0
Yes, since 8 is stronger than 7.
MrRa [10]2 years ago
7 0
This is True, because 8 is larger than 7, so it is harder.
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Describe how a fossil would form through mineral replacement.
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A fossil would from through mineral replacement by replacing the existing material of the animals bones with minerals, to become petrified. The Minerals will keep the fossil preserved longer.

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An aquifer is a rock layer that stores and allows the flow of groundwater. Compared to other types of rock layers, how permeable
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Highly porous and permeable

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Compared to other types of rock layers, an aquifer is highly porous and permeable.

Aquifers are always the target when prospecting for ground water in a formation.

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3 0
2 years ago
Read 2 more answers
How do scientific theories compare to hypotheses? a Theories are the same as hypotheses. b Theories unify a broad range of obser
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b. Theories unify a broad range of observations and hypotheses.

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In broad terms, theories are the set of principles that can or must be used to explain certain phenomena. It involves the involvement or inclusion of any set of principles to get to a conclusion.

Hypothesis, on the other hand, is just a term used for an assumption made. And this assumption may be made even before any observation has been done, a mere suggestion for how to proceed with things or an assumption about things.

Thus, scientific theories unify a broader range of observations that had been done, including any hypothesis. So, the <u>correct answer is option b</u>.

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