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salantis [7]
3 years ago
10

Describe the ways in which water in sewage polluted lake and water from the sea are

Biology
1 answer:
Radda [10]3 years ago
7 0
Sewage holds toxic microbes and contains a mixture of suspended impurities. When these impurities hit drinking water microorganisms begin to deteriorate the water, and uses up the dissolved oxygen with the microorganisms, making these water dangerous to drink from. Major impacts of this can include giardia, salmonella, cryptosporidium, and E. coli.
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A Chlorella cell viewed through a microscope is 0.00005 m wide when the magnification is 2000.
juin [17]

Answer:

0.0025micrometer.

Explanation:

To calculate the actual size of the image, the formula to be used is

Actual size=Image size÷magnification.

The image size is 0.00005 wide

Magnification is 2000

First, convert the image size to micrometer.

=0.00005 × 1000000

50micrometers.

Actual size= 50÷2000

Actual size = 0.0025

3 0
2 years ago
A forest fire lightly burned part of the park. The fire added nutrients to the soil. The fire also helped pine cones open and dr
sdas [7]
It is defiantly not a, because only part of the park was burnt. It wouldn't be c, because fire does not cause seeds to fly in. I would say B
8 0
2 years ago
Read 2 more answers
In a forest, for example, plant____ compete for resources such as water and nutrients in the soil.
jolli1 [7]

Answer:

the answer is root

good luck

5 0
3 years ago
What is not true concerning the flow of energy through an ecosystem
Tema [17]

A lot of the energy from photosynthesis flows out as heat.

^answer

When energy is being transported or flowed through the ecosystem most of the heat is lost.

Hope this helps!

4 0
2 years ago
What advantage is there in having the special sensory organs confined to the head region?
Dmitriy789 [7]
The answer to this question would be: rapid impulse transmission. 

By having organ near the head, the brain can process the information faster because the length of the nerve that carries the impulse from organ would be much shorter. The nerve also at lower risk of damage since it was shorter.
But it makes the head very important and damage to the head can cause much more problem than any part of the body.
3 0
3 years ago
Read 2 more answers
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