12x+9y=15 where would the y intercept be?

Photosynthesis converts solar energy into what type of energy?

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

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