Which of the following is a problem faced by the global economy?
A. Decreasing cost of renewable resources
B. Decreasing human population
C. Increasing environmental awareness
D. Increasing greenhouse gas emissions

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it

Gay-lussac's law i think.

Are their choices to the question?

Hello therethe ability of a muscle to produce prolonged effort is muscle answer: the ability of a muscle to produce prolonged effort is muscle  flexibility