Look at each set four vocabulary terms. On the line provided, write the letter term that does not relate to the others. A. market economy
B. democracy
C. traditional economy
D. command economy

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.