Answer Happy

8. Which of the following is evidence for nuclear fusion? A. The presence of positrons on the surface of the sun B. The presence of many elements in the sun C. The amount of neutrinos that reach the Earth's surface D. The presence of electrons on the surface of the sun

10. What processes occur in the transfer of energy through the Earth's atmosphere? A. I and II B. I and III C. I, II and III D. I, III and IV 11. As electromagnetic radiation undergo radiation (or radiative diffusion), what happens to the radiation? A. The lose energy B. They gain energy C. They disappear D. They turn from heat into light 12. How does pollution in the atmosphere result in an increase of temperature on Earth? A. It absorbs energy radiating from the sun B. It causes pollution to rise up into space C. It blocks light from reaching the ground D. It traps reflected light inside the atmosphere 13. What is the total lifespan of the sun? A. 4.5 billion years B. 5 billion years C. 9.5 billion years D. 18 billion years