You can use average speed to calculate the speed of an object that is moving at a constant speed.

true

false

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil