Question 3 Which statement BEST describes one difference between Earth's mantle and crust?

The mantle is less dense than the crust

The mantle is hot compared to the crust

The mantle is cool compared to the crust

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave