What is the function of the electron transport system?

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

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

In each transformation of energy , some energy what?