The unit of pressure used in meteorology and on weather maps is the …………..
a) bar
b) atm
c) Pascal
d) none of these
1 bar = …………………Pa.
a) 1.0x105
b) 1.00x105
c) 1.000x105
d) 1.0000x105
The standard atmospheric pressure is slightly… 1 bar.
a) less than
b) more than
c) equal to
d) none of these
The climbers at high altitudes encounter lower atmospheric pressure due to the ………
a) thinner air
b) high pressure
c) thicker air
d) high density
The thinner air at high altitudes causes breathing difficulties due to the……..level of oxygen.
a) high
b) constant
c) low
d) none of these
At a height of about 30km the atmospheric pressure becomes………EXTRA
a) 1000Pa
b) 1100Pa
c) 1200Pa
d) 1300Pa
