Biology answers many questions but it's main focus is?

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

Moving down the ramp from 6 meters to

Add solid urea to a beaker of water. the beaker gets very cold. is δh favorable or