Arctic ice plays an important role in cooling the earth. What evidence from the text best supports this statement?

А. In the last 30 years, more than one-third of the ice that appears in the Arctic during the summer has melted away.
B. Arctic ice reflects the sun's light.
C. When Arctic ice melts, it reveals more of the darker-colored land or ocean
water.
D. Darker-colored land absorbs the sun's light, causing the climate's
temperature to increase.

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explanation:

b r

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when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

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