The psychrometer is a device used to measure the
Relative Humidity (RH) of the air.
Relative humidity is the ratio of
(the amount of moisture in the air, here and now)
to
(the amount of moisture the air could hold at this temperature) .
Being a ratio, it has no units. It's just a naked number, always
less than ' 1 ', and usually expressed as a percent.
B: China and India both have a population around 1.5 billion people so in total they have around 3 billion people combined! That is more than the continent of Africa and North America combined!
I think it might be either wind power or hydro electric, but because new zeland has many rivers and reservoirs, i think it might be hydro electric power.
Answer B. Continental shelf:
Explanation:
Just looked it on Nasa website says it forms on oceanic and continental plates
