It allows government officials to retain and hold foreign nationals were considered threats to national security.
Answer:
1788
Explanation:
Australia was established as a British penal colony in 1788. New South Wales which is a state in Australia was founded by the British and they took advantage of that by using the state as a place where they kept and transported criminals.
Most of the criminals transported to the region where those who were on death row and they were from different British states such as Scotland, Ireland etc.
Building through the Sierra Nevada Mountains was very difficult and dangerous. Temperatures were freezing during the winter and in one year alone there were 44 storms.There was the great danger of an avalanche for the men working through 18 feet of snow and camping on the tunnels beneath it. Creating tunnels through the mountains required blasting with nitroglycerin. Advancing at one foot of mountain at a time, a total of 11 tunnels was created.
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<span>I believe "B" & "C" not 100% tho
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