Icant remember my mass, grams, and volume. and how to divide density

thats a little if u want the answer just look it up on google thats what i do haha : )

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.