High pressure means that cold air is sinking. but, when the air warms up and rises, clouds can form, and precipitation can occur. this indicates the power of what on weather conditions.
a. humidity
b. heat
c. wind

c.wind

Explanation:

As the cold air mass is denser and the warmer air mass id overridden by the colder mass air as the air is less dense and creates less air pressure the air will tend to sink and clouds are formed as a result of the two contrasting air masses and all this takes place due to the wins that move from the areas of high to low and how to high-pressure areas. Indicating the power of the winds in motion. The wind direction is also one of the important factors that influence the rise and fall of the mass. Owning to the rotational motion of the earth on its axis.