Pollution and climate change
Answer:
Explanation:
NAD 27 is based on the longitude and longitude, and the direction between points. NAD 83 is an earth centered datum which does not have beginning point or direction.
people burning down forests and grow crops in the ashes. Cutting the hillsides into stair-step shapes in order to have flat places to plant seeds. They modify the environment so they have ways to grow food and crops. A negative impact of modification is it could cause a smog or rivers and streams.
"The exact <span>age of the layers" is the information among the </span>information's<span> given in the question that is provided by absolute dating about the layers of earth. The correct option among all the options that are given in the question is the second option or option "B". I hope that it has helped you.</span>