higher or lower in A than in B, or the same in A and B, depending on the air temperature above A and B.

higher or lower in A than in B, or the same in A and B, depending on the humidity status of the air.

lower in position A than in position B due to the thickness of the friction layer.

higher in position A than in position B independent of the air temperature above A and B.

4

3

1

2

a body of air with a volume of not more than thousand cubic kilometres.

a large body of air within which the temperature and humidity is uniform in horizontal and

vertical planes.

an extensive body of air within which the temperature and humidity in horizontal planes

are practically uniform.

a large body of air with temperature and humidity constant in the vertical.

(1) improves; (2) increases

(1) improves; (2) decreases

(1) degrades; (2) increases

(1) degrades; (2) decreases

The visibility is reduced due to mist from the sea and sand in the air. 

 The visibility is unaffected by polluted air. 

The visibility is reduced due to sand and dust in the air.

The moist air from the sea causes haze.

a GAMET report

the isobars on a surface chart

the CAT areas ona significant weather chart

the isohypses on an upper air chart

lower than 63 knots and the air is descending.

higher than 63 knots and the air is ascending.

lower than 63 knots and the air is ascending.

higher than 63 knots and the air is descending.

2,3 and 1

5,6 and 2,3

2,3 and 5,6

4 and 5,6

windward side of a mountain range and is caused by surface cooling and reverse air flow. 

leeward side of a mountain range and is caused by the condensation level being lower on the leeward side than on the windward side. 

windward side of a mountain range and is caused by surface heating. 

 leeward side of a mountain range and is caused by significant moisture loss by precipitation from cloud.

The mean temperature of all months is above 0°C, but temperatures as high as plus 10°C will never be reached.

 The mean temperature of all months is below minus 10°C. 

 The mean temperature of all months is below plus 10°C

The mean temperature of the warmest month is 10°C or above, and of the coldest month below minus 3°C.