Which of the following is a valid mole ratio from the balanced equation 2C3H6 + 9O2 → 6CO2 + 6H2O?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?