To know if something is an acid or base, you must test its pH level
Rill erosion can eventually evolve into gully erosion. Gully erosion<span> happens when runoff concentrates are flowing in a very strong manner causing it to move some of the soil particles. Advanced </span>rill erosion can<span> become a </span>gully erosion<span>. </span>
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<em><u>It is a rocky terrestrial planet. 71% of earth is made up of water so the world is mostly covered by oceans. </u></em></h2><h2>
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<em><u>Your brainly friend ( lauralit1 )</u></em>
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D.<em>The</em><em> </em><em>number</em><em> </em><em>of</em><em> </em><em>waves</em><em> </em><em>that</em><em> </em><em>pass</em><em> </em><em>a</em><em> </em><em>point</em><em> </em><em>in</em><em> </em><em>1</em><em> </em><em>(</em><em>per</em><em>)</em><em> </em><em>second</em>