Answer:
14
Explanation:
For independent variables X and Y;
S.D(X - Y) is expanded as :
S.D(X) + S.D(Y)
If S.D(X) = 6 and S.D(Y) = 8 ; where, X and Y are independent ;
SD(X-Y) = SD(X) + SD(Y)
SD(X - Y) = 6 + 8
SD(X - Y) = 14
B) Texture
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Answer:
<h2><u>
Answers which apply </u></h2><h3>
<u>The ozonosphere:</u></h3>
-is made of O3
-heats the air in the stratosphere
-absorbs ultraviolet rays from the sun
<u>note </u>: the ozonesphere is part of the stratosphere not the thermosphere.
: the mesophere is extremely cool/cold