Satellite imaging can be used to:
predict weather
analyze geological structures
locate oil deposits
all of the above

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?