natural gases

"The stove burner released a gaseous smell, signaling the propane was low. "

"After the flood, we found strange deposits of dark, shiny rock in our backyard that were not part of the local soil. "

"Burning natural gas, which is mostly made of hydrocarbons, provides heat for many homes. "

"Cattle emit a large amount of methane."

"The new student was a natural from Japan. "

"The mixture of flour and water was carefully stirred to make the dough. "

"The factory used petroleum to fuel its machinery. "

"A small group."

"The garden club meeting was principally about planning the annual flower show. "

"Our company associated with a local charity to help raise money for their programs. "

"The amount of atmospheric pollution threatens a health crisis."

"My dad uses propane to fuel the barbecue grill for our family cookouts. "