biodiesel

"Solar power is a renewable energy source. "

"The noisy construction outside the church was a pollution of the peaceful atmosphere, distracting everyone from the service. "

"The divers encountered a huge school of mackerel."

"The chemist studied the properties of the organic compound. "

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

"There is still time to oppose this plan."

"My mom planted many different vegetables in her garden. "

"My dad's old truck runs on diesel fuel. "

"Asphalt, composed of oil and sand, is a widely used material for roads."

"The Roman army brought their siege engines to the city walls, preparing to break through the defenses. "

"to reduce weight, speed, heat, expenses, price, personnel etc."

"The museum exhibit showed a beautiful fossil of a dinosaur bone. "