Which of the following sources provides detailed information about only the upper mantle’s composition? 1. Seismic waves
2. Earth’s magnetic field
3. Meteorites
4. Volcanic activity

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.

Sarah is making a scale drawing of a painting that is 48inches wide by 120 inches high her paper is 12 inches wide and 24 inches tall she decides to use a scale 1 inches equals 4 inches is this a reasonable scale

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.