Environmental Science
The ratio of the mass of water vapour in a given volume (parcel) of air to the mass of the remaining dry air describes the:

Mixing ratio
Relative humidity
Absolute humidity
Dew point

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
When a liquid thermometer is held in direct sunlight,

It will measure a much higher temperature than that of the air
It will measure the temperature of the sun rather than the air
It will measure a much lower temperature than that of the air
It will accurately measure the air temperature

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
Low clouds retard surface cooling at night better than clear skies because:

The formation of the clouds releases latent heat energy
The water droplets in the clouds reflect infrared energy back to earth
The clouds absorb and radiate infrared energy back to earth
The clouds start convection currents between them
The clouds are better conductors of heat than is the clear night air

ANSWER DOWNLOAD EXAMIANS APP