Topography is the rise and fall of the land (AKA B)
Answer:
Watson and Crick discovered that DNA has a double helix shape, consisting of two polynucleotide chains held together by bonds between complementary bases. DNA replication is semi-conservative: half of the parent DNA molecule is conserved in each of the two daughter DNA molecules.
Explanation:
I looked it up lol
All of the above points are valid for fossils' contributions in understanding the process of evolution. They allow us to study the ancestry, we can see the homologous organs or structures, if fossils are well-preserved; different fossils can lead us to follow the cycles of the changes that occurred during macroevolutions, and fossils can be used to study different populations which had different body structures for surviving in different environmental conditions.
The area encircling the Pacific Ocean is called<span> the "</span>Ring of Fire<span>," because its edges mark a circle of high volcanic and seismic activity (earthquakes). Most of the active volcanoes on Earth are located on this circumference.</span>
