1. Robin carries the trash from the house to the garbage can outside. Which statement best describes the science of what he did? He would use less energy if he were to move the garbage faster
He used energy to carry the garbage.
He did not have to work because garbage is light.
He caused the garbage to have potential energy when it moved.

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?