Which of these best describes earth's crust?
inner layer consisting of two parts
middle layer, density increases with depth
top portion called asthenosphere, thickest layer
thinnest under the oceans and thickest under continents

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.