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Marina CMI [18]
3 years ago
9

How does crystal size compare in extrusive vs. intrusive rock? Explain the cause of this difference

Biology
1 answer:
Ede4ka [16]3 years ago
5 0
The difference between extrusive and intrusive rocks are how they cool down. Extrusive rocks cool down quickly and are created by lava; because of this they have very small, fine-grained crystals. Intrusive rocks cool slowly beneath the surface of the earth and are created by magma; because the cooling process is very slow the rocks have very large crystals.

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What information can a scientist learn directly from a single fossil?
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4 0
3 years ago
List four methods that can be used to separate mixturea and give an example of each method​
Evgesh-ka [11]

Distillation, Filtration, evaporation, and Chromatography

The filtration process is generally used to separate a suspension mixture where small solid particles are suspended in liquid or air.

Distillation uses boiling to separate mixtures of liquid solutions. It takes into account that different substances in the mixture will have different boiling points..

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8 0
3 years ago
What is a good property of an indicator?
ValentinkaMS [17]

Answer:

Acid base indicators are weak and acids and bases, which are used to signify the end point of neutralization reaction. The type of indicator used for a neutralization reaction depends on the strength of the acid and the base, that are involved in the reaction. A good acid base indicator must have a good pH range and it must be able to produce specific and identifiable color in specific acid base medium.

or

Two good properties of an indicator are as follows-

1) It should be specific- It means that the changes, which are measured by the indicator should be expressed in precise terms so that appropriate assessment could be made.

2) It should be time bound- This means that the measurable changes should arrive withing a particular time limit.

Example of indicator- Litmus is an acid base indicator that turns acidic solutions red and basic solutions into blue color.

5 0
3 years ago
Why is it so hard to define a virus as living or non living?
Mashutka [201]

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Explanation:

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The colored part of the human eye is the <br> A. retina.<br> B. iris.<br> C. pupil.<br> D. cornea.
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3 years ago
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