Which statement about Earth’s core helps explain Earth’s magnetic field? Earth’s core is composed of magnets. Earth’s core is composed of iron and nickel. The outer core is solid. The inner core is liquid and moving.

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules