The compound libr is an example of a(n) (2 points)
(a) metalic comoound
(b) covalent compound
(c) ionic compound
(d) element

Its ionic compound I just took the assignment

air quality

poor drinking water

and heavy polution

can lead to poor health

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.