The more an elastic object is stretched or compressed, the greater its elastic potential energy is. When we crumple a rubber band it has high potential energy or low potential energy?
high potential energy

Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs. Bob releases a deep breath, so that his lungs will have more painful pressure, making the size of Bob's chest decrease or increase?
decrease

The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering. Ann and Bob were both farmers. Ann lived in a colder climate while Bob lived in a warmer climate. When they compared notes they found that the number of crops they could successfully grow was different. Who's farm would be able to grow more types of crops Bob or Ann?
Bob