Answer:
Answer A
Explanation:
Answer A, because, metropolitan area network is a network within a city or town and wide area network usually connects many cities. So, both C & D are spread on a wide area.
B because it uses the suns power to make electricity which doesn't do anything bad to the atmosphere.
it also goes with others but i am not so sure
Answer:
A. planning and gathering financial information
Answer:
B, the NOR gate
Explanation:
The truth table of a NOR gate is below.