How do we know that Mars has strong winds on its surface? there are small whirlwinds called dust devils
its atmosphere is made up of mostly carbon dioxide
space probes have been unable to approach it
the surface has a red hue caused by rust

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

The fact that the total amount of energy in a system remains constant is a(n)

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next