The tropical north conducted it
Answer:
The answer is Option D. All of the above.
Explanation:
Fossils are formed when living organisms become trapped in the earth and their soft tissues decompose but leave behind the hard tissues like bone. The bones gradually become rock due to the sediments that begin to cover the bones. Therefore, the fossil remains of Lucy are no longer bones and cannot provide the organic material that is necessary when trying to achieve carbon-14 dates from an ancient site. It is also true that C-14 dating tends not to be very accurate with a specimen as old as Lucy. There are new dating techniques being experimented with all the time in this branch of research, like the 40Ar/39Ar (Argon-Argon) dating technique, but in general, scientists have used paleomagnetic studies to try to date fossil remains as old as Lucy's.
Answer:
Britian. Hope this helps!
Explanation:
The deepest places on the earth are in South Africa. Mining companies trying to extract gold and diamondshave mined into the earth about 6 km (about 3.5 miles). No one has gone deeper into the earth than the South African miners (with heat-resistant clothing) because of the heat and pressure at these depths prevents humans from goingmuch deeper. If we can’t go very deep into the earth, how do we know what is below the surface when we can't see it?Isaac Newton (the scientist that discovered gravity) was one of the first scientists to develop theories about the structure of the earth. Based on his studies about gravity, Newton calculated the average density of the earth and found it to be more than twice the density of rocks on the surface. Newton realized that the inside of the earth had to be much denser than the surface.
Answer:
Explanation:
The main reason of using a barrage is controlling the flow in a watercourse to avoid the risk of floods . It can achieve its purpose by contrlling the range of the water going out
