When Mr. Hiller writes on the board, his hand moves 0.5 meters in 2 seconds. What is the rate his hand moves?

0.25 meters per second

Explanation:

if you divide 2 seconds by 2 you get 1, and if you divide 0.5 by 2, you get 0.25.

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one would be wind another would be water density

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v