What were the traditional sources of energy /power and what were its problems?

the problem was  Driving Innovation and Advancing Technology.

hope this help:)

can we see the cartoon?

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.