1. which layer is the oldest?\n a. oatmeal\n b. cornmeal\n c. coffee grounds\n d. flour\n2. if the coffee…

1. which layer is the oldest?\n a. oatmeal\n b. cornmeal\n c. coffee grounds\n d. flour\n2. if the coffee layer is 250 billion years old, how old could the flour layer be?\n a. 200 billion years old\n b. 100 billion years old\n c. 230 billion years old\n d. 300 billion years old

1. which layer is the oldest?\n a. oatmeal\n b. cornmeal\n c. coffee grounds\n d. flour\n2. if the coffee layer is 250 billion years old, how old could the flour layer be?\n a. 200 billion years old\n b. 100 billion years old\n c. 230 billion years old\n d. 300 billion years old

Answer

Explanation:

Step1: Understand geological principle

In undisturbed sedimentary layers, the lower - most layer is the oldest. Without information about the layering order, we assume based on general sedimentary logic. But here we have no context about layering order. However, if we consider this from a relative - age perspective in a sediment - like situation, the layer that was deposited first is the oldest.

Step2: Analyze question 2

If the coffee layer is 250 billion years old, a younger layer would have a lower age value and an older layer would have a higher age value.

Answer:

  1. No information to determine.
  2. d. 300 billion years old