TRUE or FALSE 16. Almost all living things rely on the steady heat and light of the sun. 17. The sun's heat and light does not reach the Earth. 18. The sunlight brightens the Earth and helps us see the things around us. 19. The sun is the main source of heat and light. 20. Plants can undergo photosynthesis with the help of the sunlight. 21. The sun rises in the afternoon and sets in the morning. 22. The sun rises in the east as the Earth turns toward it. 23. Sun is made up of very cold gasses. 24. When the sun is directly above the skyline, the light rays of the sun strike directly. 25. We see all things around us because of the light from the sun.​