What creates the energy of the Sun? A. gravitational pull from its core
B. chemical reactions
C. nuclear fusion of hydrogen atoms
D. movement of magnetic materials in the core

C

Explanation:

During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom.

At the surface of the Earth, the acceleration due to gravity is roughly 9.8 m/s2 (32 ft/s2). The average distance to the centre of the Earth is 6,371 km (3,959 mi). , we can work out gravitational acceleration at a certain altitude. Example: Find the acceleration due to gravity 1,000 km (620 mi) above Earth's surface.

Explanation:

none