Why was it important for Rome to establish a far reaching trading network throughout the Mediterranean Sea?

Which of the following inventions most directly allowed ancient farmers to produce a surplus ?

What event ensured england safe passage to colonize north america? a) many englishmen desired more religious freedom than the king allowed.b) england's government decided to take advantage of america's wealth of resources.c) england's defeat of the spanish armada in 1588 opened up the seaways.d) cabot claimed the north atlantic coast for england in 1497.

Why did the outbreak of world war 2 create a need for new military bases across the country?