Earth’s human population reached 7.2 billion in 2014. It is estimated that it will reach between 7.5 and 10 billion by 2050. What impact might that increase have on freshwater sources?

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.