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Phoenix [80]
3 years ago
9

7)

Biology
2 answers:
kow [346]3 years ago
3 0

Answer: The answer is Ozone

Explanation:  The ozone acts like a filter for shorter wavelength  and highly hazardous  uv light. It protects the life on earth.

scoray [572]3 years ago
3 0

Answer:

The correct answer is A) ozone

Explanation:

Ozone(O₃) is a layer made up of 3 oxygen molecules and present in the stratosphere layer of atmosphere. The ozone layer absorbs most of Sun's ultraviolet rays and protect us from UV radiation. These ultraviolet light are harmful to animals and humans and can cause skin cancer.

In the stratosphere, ozone is continuously converted into molecular oxygen by UV radiation which breaks O₃ into O₂ and O. Then again this O₂ converts into O₃ so the process is interchangeable.

The radiation blocked by ozone cause the heating of the stratosphere so ozone plays important role in maintaining the temperature of the earth's atmosphere.

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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
3 years ago
What are the 2 alleles for fur color in snurfles and which letters represent those alleles?
denis-greek [22]
The two alleles for fur color in snurfles are Yellow and Green. These alleles are represented by the letters G and g. Homozygous dominant GG is yellow, as well as heterozygous Gg. But recessive gg is green. These are the two colors that can be seen in the traits of fur colors in snurfles. I hope this helps.
4 0
4 years ago
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FinnZ [79.3K]

Answer: i answered the first one you posted go check

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