What lines of latitude determine the" tropics"? My answer is 23.5 degrees N and 23.5 degrees S latitude. Am I right?

Question

Please check me on one more! Why is Greenwich, England, so important to a geographer? My answer is -- Because the prime meridian runs through it. Am I right?

Answer 1

Correct -- for both questions.

http://www.google.com/search?rlz=1C1GGGE_enUS379US379&gcx=w&sourceid=chrome&ie=UTF-8&q=latitudes+for+tropics

Answer 2

23.5 north and 23.4 south

Answer 3

Name at least 2 items a maps key should include