if you hear a weather report say that a low pressure system is coming in, what kind of weather can you expect?

a wind
b polluted air
c precipitation
d heat

The weather you can expect from a low-pressure system includes c) precipitation in the form of rain, snow, or sleet. Additionally, low-pressure systems are often associated with cloudy conditions and strong winds. However, d) heat and b) polluted air are not directly related to low-pressure systems.