Which type of precipitation occurs when the water vapor in a cloud freezes to form ice crystals?

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

може ли да зареждате повече информация, моля

i think its 100.

hope this !