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katrin2010 [14]

3 years ago

6

Dark skin (a result of increased melanin production in equatorial peoples) is likely a response to ultraviolet radiation, becaus

e uv radiation can cause:

1 answer:

Eddi Din [679]3 years ago

8 0

Genetic mutations, i.e. cancer

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i think its A

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A pharmacist has two vitamin-supplement powders. The first powder is 10% vitamin B1 and 30% vitamin B2. The second is 15% vitami

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$560$ mg of powder 1 and $160$ mg of powder 2

Explanation:

Let "X" denotes weight of powder 1 added to the new mixture and "Y" denotes weight of powder 2 added to the new mixture

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Let us simplify the above two equations, we will get

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