Why is precipitation typically associated with fronts?

a. fronts have higher relative humidity than the surrounding air.
b. along fronts, warm air rises, cools, and causes water to condense.
c. the warm air draws moisture out of the cold air, which then falls as rain.
d. when warm air and cold air mix, water droplets can form and fall as rain. v

How does the digestive system interact with the circulatory system? a. messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system. b. nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system. c. nutrients and gases are absorbed by organs in the circulatory system. then, they are transported to all parts of the body by organs in the digestive system. d. oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.

Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4

How many grams of c3h8 is needed in the reactants to produce 10.5 mil of h2o