<span>There were a number of factors that led to the rising tension
between Germany and France in the early 1900 including an arms race and tension
in eastern Europe. France had a large empire and felt threatened by Germany
which was rapidly industrializing and wanted to build up a navy and empire to
challenge other countries.</span>
Common law evolves in part based on decisions in court cases.
"Common law" in English history was the body of precedents established by courts and procedures from the Middle Ages onward. It wasn't so much that there was a codified system of laws, but there were past practices and procedures that informed legal decisions to be made in the present. The American legal system still takes this sort of approach to law, letting past precedents inform decisions on new situations that arise.
It depends on which time period. But, probably A.
Today, we know that the climate history over the last 10.000 years has been drastically changing. One particularly important aspect on what had happened was the fact that the glaciers and ice caps melted - a.
This has been happening over the thousands of years and has been increasingly noticeable in the last couple of decades.