Which contributes to physical weathering acids, pollution, freezing water, or carbon dioxide?

b) mutualism

hope this : )

1.solid

2.carbon dioxide

3.helium

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.