Magnetic reversals a. provide evidence for sea-floor spreading d. revealed that polar wandering may have occurred
b. were discovered by the Deep Sea Drilling Project e. confirmed the existence of subduction zones
c. cause the movements of plates

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

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz

Identify, in detail, three environmental effects of agriculture and explain how the actions of farmers cause them. what is the relationship between poverty and obesity in america and why? what are genetically modified organisms? list two pros and two cons for using genetically modified organisms. y'all this is due !