___ is expensive because it requires a lot of electricity. O A. Dropping
O B. Seltzering
O C. Desalination
O D. Drinking

State a hypothesis with a numerical estimate of the calories contained within a peanut based on the nutritional information on the package label combined with what you have learned in this lesson about fuel efficiency and calorimeters.

Which physical law states that all orbits are conic sections?

Which component of a milankovitch cycle is related to periodic ice ages throughout earth’s history?