clearer

"The student used a microscope to see the tiny cells in the plant leaf. "

"The waters of the lake were transparent until the factory dumped waste there."

"The carpenter is thickening the table leg by adding extra wood. "

"Light penetrates darkness."

"He does not even possess a working telephone."

"In biology class, we learned that technically, even fruits are vegetables because vegetables are any plant. "

"Your conscience is your highest authority."

"The main ingredient in Grandma's famous chocolate chip cookies is butter. "

"The only perceptible was the faint sound of the clock ticking in the otherwise silent room. "

"The teacher was discriminating between the students who understood the lesson and those who needed extra help. "

"The new school legislation requires all students to wear uniforms. "

"We challenged the boys next door to a game of football."