Which processes are caused by plate tectonics over long periods of time? Choose all that apply:

Rising sea level.

Seafloor trench formation.

Mountain ridge formation.

Oceanic floor spreading.

Dentify one advancement from the industrial revolution that had a significant impact on agriculture, and discuss the benefits this advancement had on the industry.

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."