Dry areas caused by sinking air and diverging surface winds are located at which two latitudes?

What is the approximate chemical composition of the solar nebula?

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?