Identify the earth motion that provides the basis for our system of local time and time zone

1 answer:

3 0

I think the Rotation of the earth provides a basis for our system of local time. The earth rotates on an imaginary axis at a rate of 15 degrees per hour. Meridians of longitude are the basis for time Zones. As Earth rotates different parts of Earth receive sunlight or darkness, giving us day and night. Having time Zones means that no matter where you live on the planets, your noon is the middle of the day when the sun is highest, while midnight is the middle of the night.

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Interpret and answer the question integrated in the

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R r r r d. X cc cc. Cc d. Cc. F

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You are conducting a case control study to determine if an association exists between melanoma and indoor tanning. From a statew

Aleksandr-060686 [28]

Answer:

a. Odds ratio = 1.58

b. Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning

Explanation:

For case study

Let 'a' represent the total population of people with melanomia = 696

Let 'b' represent the total number of people with melanomia exposed to indoor tanning = 1107 – 696 = 411 people

For control study

Let 'c' represent the total population = 1500

Let 'd' represent the total number of people not exposed to indoor tanning = 1500 - (0.428 * 1500)

= 1500 - 723

Total number of people not exposed to indoor tanning = 777 people

a. Odds ratio = (a/b) / (d/c) = (696/411) / (777/723)

= 1.69 / 1.07 = 1.58

b. Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning.

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Different energy sources provide different benefits to individuals and the environment. What are some nonpolluting sources of en

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Answer:

D the others are highly pollutant expesially nuclear and natural gas

Explanation:

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Which statement best summarizes the outcome of natural selection?

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i think b is correct

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Light is a form of EM radiation.
EM radiation has no mass (it's just energy packets called photons).
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Hope this helps!

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