The answer for your question is 1666 Kilometers
Answer:
I got no idea who the Sierra club are but I can explain.
People who are aligned with the NRA will more than likely always vote against gun control and a politician can take advantage of this by then saying "less gun control!" and then winning the majority votes of that group due to the politician saying that.
Archaeologists are people that research old artifacts, such as fossils or pottery. However, archaeologists believe the Trojan War actually took place because they found remains that could possibly be from ancient Troy. It probably won't ever be known if they were actually those from the Trojan War though.