What determines whether charges attract or repel?

What is thought to have caused the mass extinction at the end of the cretaceous period?

Building glycogen from glucose molecules is an example of what

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean