Which is a transverse wave that requires a medium to move? a. ocean wave b. sound wave c. light wave d. microwave

Explain why components that are naturally found in air can be considered air pollutants.

Which of the following east asian contries are a peninsula? a. china b. taiwan c. south korea d. mongolia

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust