What percentage of the nation's demand for electricity could be produced in the future by wind energy?
40 to 50 percent
70 to 75 percent
5 to 10 percent
25 to 30 percent

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Explain why biological control methods are generally environmentally superior to chemical pest control methods.