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Allisa [31]
3 years ago
12

Help plz with science

Biology
1 answer:
meriva3 years ago
8 0
Is that a test your taking?
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Which statements explain reasons why unconformities occur? Check all that apply.
likoan [24]

Answer:

3. Rocks erode and sediment is deposited.

4. No sediment is deposited over a long time.

Explanation:

An unconfomity is a break in stratigraphic record of a place usually as a result of non-deposition or erosion.

In a sequence of sedimentary rock strata some surfaces called unconformity surfaces gives clues about the depositional history of a particular place. During an unconfomity, there is usually no sediment deposition and when deposition resumes, the underlying rocks and the new ones will not share the same attribute especially by age. Unconformity can also be as a result of erosion of a sequence.

In the case of non- conformity, a sedimentary rock is deposited above an igneous or sedimentary rock. Option 5 is a simple example of an igneous intrusion called a sill. It is not unconformity.

3 0
3 years ago
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The basic building block of matter
ololo11 [35]

Answer:

Scientists once thought the most fundamental building block of matter was a particle called the atom. Now we know that the atom is made of many smaller pieces, known as subatomic particles. Every atom contains a central core called the nucleus, made of particles called protons and neutrons.

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3 years ago
Which of the following describes the pathway that nerve impulses travel while throwing a baseball?
Alex_Xolod [135]
The correct answer is A.
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Which of the following sentence best describes a buffer? Buffers resist change in pH of solutions by neutralizing excess acid or
Marianna [84]
It's the first one where it resist change in pH solutions by neutralizing :)
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Which of the following best describes chemical weathering? A process in which ice wears away at rocks over a long period of time
Tom [10]
The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes. HOPE THIS HELPS!! :)
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