How are changes on the earths surface connected to changes below the earths surface

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

The net below can be folded to form a square pyramid. la2419"100what is the surface area of the pyramid? 190.8 square inches| 0 217.8 square inches300. 6 square inches354.6 square inches

How can minerals crystallize from materials dissolved in water? check all that apply.