FACTORY OWNERS __________________.A. KNOW NOTHING ABOUT POLLUTION...

40. Factory owners __________________.a. know nothing about pollution b. treat wastes from their factories safelyc. have no awareness of pollution d. do not want to spend money on treating the wastes safelyB.41. _______ air is one of the many problems we have to solve.a. Pollution b. Polluted c. Polluting d. Pollute