Which best describes the part of the ocean called the continental shelf a region of mountains in the deep ocean

a shallow area of sediment near the store

a flat underwater valley

a region with a higher water pressure

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

When would a bouncy ball have the most potential energy

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.