Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2.Carbon dioxide gas is A
an element made of carbon and oxygen atoms.

B
a solution made of carbon and oxygen atoms.

C
a compound of carbon and oxygen atoms.

D
a mixture of carbon and oxygen atoms.

A

an element made of carbon and oxygen atoms.

So I think the answer is going to be A An element made of carbon and oxygen atoms.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.