Present progressive------------------had to get it wrong to know the right answer .-.
Density and Convection<span> at the Beach. </span>Convection<span> is heat transfer due to a density differential within a </span>fluid<span>. ... The </span>current<span> begins when the air over the hot sand is heated and begins to </span>rise<span> because of its lowered density. Air from above the ocean is colder and more dense.</span>
I think the answer is D though.................
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umm cause. ig u want something??????
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y did you do that tho?
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Water resources face a host of serious threats, all caused primarily by human activity. They include pollution, climate change, urban growth, and landscape
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