When you look out your window and see a skateboarder in front of your house, and two minutes later you look up and see her several houses away,
you can use this information to describe her
A. speed B. velocity c. change in position d. accelleration

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

What reaction is taking place? 02 + c3h8 = h20 + co2

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space