Which layers of Earth are mostly made of solid material? A) crust and inner core

B) crust and mantle

C) mantle and outer core

D) inner core and outer core

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.