The relative atomic mass of chlorine is 35.5. When calculating relative atomic mass, which particle is the mass of a chlorine atom compared
to?
А
a neutron
B
a proton
С
an atom of carbon-12
D
an atom of hydrogen-1

Explanation:

The A r values also allow you to work out that three oxygen atoms have the same mass as two magnesium atoms. Chlorine's A r of 35.5 is an average of the masses of the different isotopes of chlorine.

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A r values of elements.

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.