During the 1900s, many chemical companies invented a variety of plastics. plastics are used in a wide array of technologies, including food packaging. describe the positive and negative effects of the widespread us of plastic for food packing?

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.