In The Pros and Cons of Plastics, explore how the economy (the way materials are made, sold, and bought) is affected by using and producing plastics. Use the information to answer the question. How does producing plastics benefit the economy?

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.