methane

"My grandfather built a greenhouse in his backyard to grow tomatoes even during the cold winter months. "

"Gasoline is a hydrocarbon fuel used in many cars. "

"Many medications are derivatives of natural substances found in plants or fungi. "

"The ruling party or coalition sometimes dissolves parliament early when the polls are favorable, hoping to reconvene with a larger majority."

"The new student was a natural from Japan. "

"The supermarket sells a wide variety of food products. "

"The simplest way to solve the math problem was to use the formula directly. "

"The new recruit was a strong and effective soldier, ready for basic training. "

"A key constituent of a good cake is flour. "

""Because it contains only carbon and hydrogen atoms arranged in a straight chain, that organic molecule is classified as an aliphatic." "

"[W]ith their magical words they [poets] bring forth to our eyesight the abundant images and beauties of creation. — Leigh Hunt, On the Realities of Imagination"

"Can you clean the windows today?"