The presence of photosynthesizing algae.
Answer:
They act as barriers whereby wind deposits its load to come up with major land forms in the desert.
Explanation:
Sand dunes retain the load that arises as a result of erosion processes ,and disposition.
Wind deposits con form hills and sand sheets .
An example of this is in California , whereby Sand dunes make up to 25 % of the land-forms in the arid areas .
Sand dunes can also influence the formation of oases , as a result of wind action.
Answer:
<h2>C</h2><h3 />
Explanation:
<em>medical</em><em> </em><em> </em><em>personnel</em><em> </em><em>often</em><em> </em><em> </em><em>became</em><em> </em><em>ill</em><em> </em><em> </em><em>as</em><em> </em><em>a</em><em> </em><em>result</em><em> </em><em>of</em><em> </em><em>exposure</em><em> </em><em>to</em><em> </em><em> </em><em>airborne</em><em> </em><em> </em><em>virus</em><em> </em><em>particles</em><em>. </em>
<span>B.
TRUE
"</span>About 200 million years ago<span>, the supercontinent began to </span>break up<span>."
</span>
Salt is the solute, and water is the solvent is in where the solute dissolved
