At 20 mph the force of your car impacting a surface is about four times as great as 10mph. a true b. false

Because its government strictly controls its economy, north korea has a economy. a. command b. mixed c. traditional d. free market

What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.

Select the star life cycle that is accurate