In arctic climates, the soil
a. supports rain forests
b. is good with irrigation
c. does not support farming
d. is suitable for farming

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

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

Which of the following factors is not used to measure a country’s standard of living? a.) life expectancy b.)educational levels c.)divorce rates d.) gross income