Camel humps are an adaptation for a. storing water b. regulating body heat c. carrying riders d. all of the above

The correct answer is:

 b regulating body heat.

 Explanation:

Camels have humps on their backs as rooms to store fat. It is this fact that they live off when food and liquid are scarce. A well-fed camel in good shape has a firm, upright hump. After a long, exhausting wilderness journey the corresponding camel will have a hump that does floppy and bent over to one side.e. Concentrating body fat in their humps reduces heat-trapping.

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true