Which correctly lists three water sources that contribute to a river system? groundwater, ponds, streams
lakes, rivers, ponds
rivers, streams, watersheds
O streams, lakes, oceans

Describe characteristics of a good respitory surface

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.

Which nutrients contain nitrogen in addition to carbon hydrogen, and oxygen? a) vitamins. b) proteins. c) carbohydrates. d) fat