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Naddika [18.5K]
4 years ago
15

How is crude oil brought to the surface

Biology
1 answer:
natta225 [31]4 years ago
8 0
In some places, especially some new wells that have just been drilled,
the oil is under pressure, and it brings itself to the surface as soon as
you drill a 'pipe' for it to rise through.

In most oil wells, there's a pump bobbing up and down day and night,
pumping the oil up out of the well.

When the well is so old that even a pump isn't very effective, water is
often forced down the well under pressure, and the water forces the
oil back up through the pipe.
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Mutation rate of Gram negative bacteria is much greater than that of Gram positive bacteria.

Explanation:

The gram positive types of bacteria responsible for causing diseases in humans. It is called as Gram positive bacteria. Both the bacteria are different in structural and physical properties. It is defined as the group of bacteria’s which positive result in gram stain test.

Gram negative bacteria are the group of bacteria’s which gives negative result to the gram stain test. This classification is done according to the cell wall. The cause of common disease by Gram positive bacteria is our anthrax, diphtheria, etc.

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3 years ago
Find the word to correctly describe the action that makes a vector successful
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Answers in order from top to bottom for statements on the left side of page.

1. Activate

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3 years ago
Which structure would you not find in a prokaryotic cell?
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Answer:

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The faster a cheetah can run, the more likely it is to capture its prey. Cheetahs with longer legs are able to run faster than t
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Answer:

D

Explanation:

This is the more likely explanation, as there must be a limit to leg length in an animal that has to run very fast and strain their muscles and bones to the limit to do so.

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3 years ago
What does the operon model attempt to explain?
sergiy2304 [10]

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