What do petrologists study? a. fossils b. seismic activity patterns c. changes in the earth's surface d. the composition and formation of rocks

Which summarizes the relationship between density of an element and its distribution in earth? a. the greater an element’s density, the greater the amount of it found in the crust. b. the denser an elements is, the smaller the amount of it earth core. c. the greater an elements density, the smaller the amount of it’s found in the crust

Which of the following is not considered one of the four major oceans (1 point)

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