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

i think that the answer is c

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.