Enter the clearance codes from the various quizzes.
| Quiz 1 - The emission spectrum of the Sun | ||
| Quiz 2 - What happens to sunlight | ||
| Quiz 3 - The temperature-altitude profile of the atmosphere | ||
| Quiz 4 - The variation of atmospheric pressure with altitude | ||
| Quiz 5 - The ozone layer | ||
| Quiz 6 - Explanation for the variation of temperature with altitude |