Question

1. what percentage of all the mass in the solar system does the suns mass represent? a) 50% b) 75% c) 99.8% d) 10% 2. unlike earth, what does the sun not have? a) an interior b) an atmosphere c) a solid surface d) gravity 3. the suns interior consists of which three layers? a) photosphere, chromosphere, corona b) core, radiation zone, convection zone c) sunspots, prominences, solar flares d) hydrogen, helium, oxygen 4. where does the sun produce an enormous amount of energy? a) radiation zone b) convection zone c) core d) photosphere 5. what process generates the suns energy? a) nuclear fission b) nuclear fusion c) electromagnetic radiation

Explanation:

1. The sun accounts for about 99.8% of the total mass of the solar - system.
2. Unlike Earth, the sun is a giant ball of plasma and does not have a solid surface.
3. The sun's interior consists of the core, radiation zone, and convection zone.
4. The sun produces an enormous amount of energy in its core through nuclear reactions.
5. The sun's energy is generated by nuclear fusion, where hydrogen atoms combine to form helium.

Answer:

1. c) 99.8%
2. c) A solid surface
3. b) Core, radiation zone, convection zone
4. c) Core
5. b) Nuclear fusion