Write the equation of the line that is perpendicular to the line x - 4 y = 20 and passes through the point (2, -5)

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

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration