The correct answer is - the first, black layer.
If the situation is that the rock layers have not been disturbed, and their alignment is in order as the periods in which they have been on the top, before being covered with new sediments, than the oldest fossils will be at the bottom layers, will the newest in the top layers.
In this situation, we know that the mollusks have evolved before the arthropods, and since the arthropods are found in the second, grey layer, the mollusks will be found in the layer bellow them, the first, black, layer.
Answer:
D
Explanation:
idk but I'm pretty sure it's D
It’s gone b b because there is no other reason
The probability of compound events refers to mathematical formulas and methods that are used to find out the likelihood that two independent events will happen.
<h3>What is compound probability?</h3>
Your question is incomplete so instead, I'll give an overview of compound events probability.
Compound events refer to independent events so when we look for compound event probability, we are trying to find out how possible it is that both these independent events happen.
The simplest method is by multiplying the probabilities of these two events with the product being the compound probability.
Find out more on compound probability at brainly.com/question/1553768.
#SPJ1
