Which system interactions are dependent on the plants ability to respond to the direction of light​

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

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