Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Online content: site 1 why do tens of thousands of sub-saharan africans try to cross the mediterranean each year?.

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.