A star produces energy by:
O
A. combining two atoms to form a larger atom, releasing energy.
O
B. creating sunspots and releasing coronal ejections.
O
C. splitting atoms apart, releasing energy in the form of photons.
O
D. expanding and contracting its magnetic field.

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures