Which conditions are usually the effect of a low air pressure system?
clear, dry weather
cloudy, wet weather
cold, dry weather
hot, dry weather

Explanation : High air pressure is generally associated with nice weather.

Low air pressure is generally associated with cloudy, rainy, or snowy weather.

Therefore, Cloudy and wet weather .

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

which statement about this sum is true? −245+2.7