Respuesta :
Hello There! ^_^
Your question: The paleozoic–mesozoic boundary is a major break in the geologic time scale because..?
Your answer: The paleozoic–mesozoic boundary is a major break in the geologic time scale because it is when mammals first appeared!
Happy Studying!
Your question: The paleozoic–mesozoic boundary is a major break in the geologic time scale because..?
Your answer: The paleozoic–mesozoic boundary is a major break in the geologic time scale because it is when mammals first appeared!
Happy Studying!