Answer:
The machine-gun was one of the deadliest weapons of the Western Front, causing thousands of casualties. It was a relatively new weapon at the start of the war, but British and German forces soon realised its potential as a killing machine, especially when fired from a fixed defensive position.
The Vickers machine-gun (above) was famed for its reliability and could fire over 600 rounds per minute and had a range of 4,500 yards. With proper handling, it could sustain a rate of fire for hours. This was providing that a necessary supply of belted ammunition, spare barrels and cooling water was available. When there was no water to hand, soldiers would urinate in the water jacket to keep the gun cool!
Explanation:
Answer:
D. A substance, energy source, or organism used by humans
Explanation:
Its not man made like the others
Negative: the ice is melting meaning sea levels are rising. if sea levels are rising then there is less land. if there is less land then there is less land to be able to farm on
The Answer is Solar Energy
