Andrew gets on his bike and begins riding.

Which force is causing the bike to move forward?

A.
pull
B.
friction
C.
push
D.
gravity

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

The process of a material going through a change of state from a gas to a liquid

Why are nonmetals more likely to react with eachother by sharing electrons