Scientists believe that convection currents within the are responsible for the movement of the plates that form the earth’s crust. -Astenosphere
-Lithosphere
-Inner core
-Outer core

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity

What way does renewable energy differ from nonrenewable energy?