Question

1. describe the most common type of nuclear fusion in the sun.
2. what are the two end products of fusion in the sun?
3. will the amount of hydrogen and helium in the sun increase or decrease over the next few million years?
4. what layer of the sun’s atmosphere can normally be seen?
5. how does the transfer of energy in the radiative zone differ from the transfer of energy in the convective zone?

Explanation:

1. The most common type of nuclear fusion in the sun is the proton - proton chain reaction. In this process, hydrogen nuclei (protons) combine to form helium nuclei.
2. The two end - products of fusion in the sun are helium and energy in the form of gamma rays and neutrinos.
3. The amount of hydrogen in the sun will decrease over the next few million years as it is converted into helium through fusion. The amount of helium will increase.
4. The layer of the sun's atmosphere that can normally be seen is the photosphere.
5. In the radiative zone, energy is transferred by radiation (photons moving through the plasma). In the convective zone, energy is transferred by convection currents (hot plasma rising and cooler plasma sinking).

Answer:

1. The proton - proton chain reaction.
2. Helium and energy (gamma rays and neutrinos).
3. Hydrogen will decrease, helium will increase.
4. The photosphere.
5. In the radiative zone, energy is transferred by radiation; in the convective zone, by convection currents.