Our weight on the moon is less than it would be on earth due to a different of the strength of gravity on the moon
Answer:
: approximately
.
: approximately
.
: approximately
.
:
.
Explanation:
Consider a
sample. There would be
of
and
of
.
Out of that
of
:
(by mass) would be
:
.
(by mass) would be
:
.
(by mass) would be
:
.
Overall, the composition (by mass) of each element in this mixture would be:
:
.
:
.
:
.
:
.
Answer:
Because its source is the almost unlimited amount of heat generated by the Earth's core. Even in geothermal areas dependent on a reservoir of hot water, the volume taken out can be reinjected, making it a sustainable energy source.
Explanation:
A physical change, ie tearing a piece of paper in half.