Question

1. the mass lost during solar thermonuclear fusion is converted to ______.

○ hydrogen
○ helium
○ heat and light
○ electricity

Explanation:

In solar thermonuclear fusion, hydrogen nuclei fuse into helium. A small portion of the mass is lost, and this mass is converted into energy in the form of heat and light, which is the sun's primary energy output. Hydrogen is the reactant, helium is the product, and electricity is a human-generated energy from solar radiation, not the direct conversion of the lost mass.

Answer:

heat and light