What imaginary line marks the southern boundary of the tropics

After world war 2, many people moved from the cities to?

Briefly describe in your own words the pros and cons of the changes people have made to the land in south florida.

Which of these is most likely a characteristic of a non-radioactive daughter isotope after it is form from the parent isotope ? a. stable electrons b. stable nucleus c. positively charged atom d. negatively charged ion