How could the Apollo 13 problems have been avoided?

What was the total distance traveled in apollo 11? Is eye color a variable? What are the colors of the atmosphere? What knowledge are you gaining from space exploration? When was the contact lens invented? What time of Year can you see the Constellation Orion? A large permanently operating space facility to be built by eighteen nations is called the International Space Station? How many years is the 1.5million light years? The sun drenched sky spilled its rays on the grassy field What Feelings would a character most likely experience in this setting? Why did nasa carry out the deep impact mission? Do equinoxes occur in both hemispheres at the same time? What would happen to people if they touched the sun? What is the description of the current state of the atmosphere? What Greek god is in cabin number 3? Who were the first people to record constellations? Which planet has the greatest mass relative to earth? Which theory is currently accepted as explaining the Moon's creation? What the waxing gibbous phase is the amount of illumination incrasing or decrasing? How did scientist determine where earth is located in the milky way? In what ways is a new moon similar to or different from a total lunar eclipse?