Answer:
D
Explanation:
The reason that Antarctica is unclaimed is due to the Antarctic treaty signed by 12 developed nation in 1956 (and since then 38 nations) which states that no nation can claim the region. This treaty was aimed at protecting the continent’s ecozone (from military operations and mineral exploitation, etc) that is essential or the planet. Due to the harsh environment on the continent, it is also inhabitable and is more or less unoccupied.
YES he did. He benefited from El Niño is the answer.
locks. They raise ships to the water level of the differeny body of water that will be entered.
troubleshooting is solving serious problems for a company or other organization.
