Which type of plate boundary results in the highest mountain range?

Suggest two reasons why irrigation is important for human development of the desert (4 marks)

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.

Horizon a is also sometimes called a. topsoil b. subsoil c. bedrock d. weathered bedrock