<span>Good Morning!
The atmospheric layer closest to us is the troposphere.
Hugs!</span>
Radiometric dating is dating a rock or mineral by measuring the proportions of an original radioactive material and its decay products. We need to know the rate at which radioactive decay occurs and <span>how much radioactive decay has occurred. Hope this answers the question. Have a nice day.</span>
Because with maps they knew where to go , without them they will be lost
Answer:
The first trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first cap
Explanation:
Considering the knowledge of geography and the situation you described in the text, the correct answer is that ", the Trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first cap.
I'd say D, as we don't affect the earth as we get more of it.
