Answer: <em>species diversity
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<em>ecosystem diversity
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<em>genetic diversity</em>
You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives pure water. After a two-week period, the height is measured. i think the indepent variable is sunflower ... variable is height measured and the control variable is the fourth plant.
<span>repairing parts of damaged tissue </span>
Pangaea started to break apart.
The earth rotates from West to East or if you want another way of saying it, counter-clockwise. It rotates from West to the East because the earth's Western Hemisphere (West) rotates to the Eastern Hemisphere, (East).
P.S. I hope this helps you!!