How do sand dunes move? Use the terms leeward and windward in your explanation.

1 answer:

7 0

As the sand mound grows, the point of maximum sand deposition on the leeward face moves closer to the summit, causing a steepening of the leeward face relative to the windward face. The steepening and growing dune now forces wind out over the top of the dune rather than down the leeward face.

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Which statement best explains why so many fossils look different from the millions of species currently living on Earth?

lianna [129]

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3 years ago

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A 2.5% (by mass) solution concentration signifies that there is of solute in every 100 g of solution. 2. therefore, when 2.5% is

densk [106]

Answer #1 is "there is 2.5 grams of solute in every 100 g of solution."
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mass of solute / mass of solution = 2.5g solute / (2.5g solute + 97.5g solvent)
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We multiply 10 to each mass so that 100 grams becomes 1000grams since 1000 grams is equal to 1 kg:
mass of solute / mass of solution = 2.5g*10/[(2.5g*10) + (97.5g*10)]
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