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dmitriy555 [2]
3 years ago
8

Which technique does the process of reverse osmosis include? A. application of remote sensing data sediment tanks B. separating

ions by electrical current C.use of a semipermeable membrane
Biology
1 answer:
pantera1 [17]3 years ago
7 0

Answer:

C. Use of a semi permeable membrane.

Explanation:

This techniques improves water taste and odour. It also helps to remove contaminant from water and also impurities. it is effective and safe to use and the system is fully automated and it works as a filtration technique.

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A plate glass window (n = 1.5) has a thickness of 4.5 mm. how long does it take light to pass perpendicularly through the plate?
nirvana33 [79]

The solution to this is to use the n = c / v equation

Where:

c is the speed of light: 3x10^8; and

The idea that v = m/s

So plug in the m/s for v in the n = c v equation and you will get:

1.5 = (3 x 10 ^ 8)/ ((4.5m)/s))

Therefore, the time should be 2.25 x 10 ^ -10 seconds.

4 0
3 years ago
!!!!!20 POINTS!!!
Virty [35]

Answer:

1. 50%

2. homozygous recessive

Explanation:

Took the quiz :)

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7 0
3 years ago
What does this article reveal about the role Black inventors have played in America's history? Explain your answer.
cupoosta [38]

Answer:

The article revealed the fact that Black inventors have always played an active role in inventing new things in America. In the 18th and 19th centuries they were denied the right to patent their inventions because of their status as slaves. This has changed for the better in present times as many Black inventors are being granted patent rights.

Explanation:

The article, "America’s always had black inventors – even when the patent system explicitly excluded them", by Shontavia Johnson, explained the active role that Black Americans, both free and slaves played in inventing things in the United Slaves. The article explained that although the patent rights signed into the constitution in 1787 was written in a neutral tone, it did not change the fact that black inventors were actually denied patent rights.

This segregation affected people like Henry Boyd, Ned, Benjamin Montgomery among others. In recent times, this segregation has significantly been curbed as many Black inventors are now owners of patents. An example is Lonnie Johnson, inventor of the Water Gun and owner of more than 80 patents.

4 0
2 years ago
I need help plz plz plz plz plz plz
3241004551 [841]

Answer:

We need a pic to help you.

Explanation:

8 0
2 years ago
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Griculture: Mastery Test
enot [183]

Answer:

1. Isabella wanted

2.She read and reviewed

3.She constructed a hypothesis

4.She submitted her proposal

5.Control groups

6.She collected

7.She reached a conclusion

8.she presented

Explanation:

I got it right

4 0
2 years ago
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