There is almost no production on Antarctica, so anything man made will have to be imported.
Everything used by humans in Antarctica is imported.
Everything used by humans is imported to Antarctica.
Everything that sustains scientific research on the continent is imported, including humans.
Your answer depends on where you are eating. Every research station imports foodstuffs appropriate for that country's employees.
No. There are no bears in Antarctica of any species.
Antarctica is a continent.
Antarctica is a desert.
There are not ANY!
No. Antarctica is an international territory.
People who live and work temporarily in Antarctica eat the food that their government imports to the continent for them to eat. A generous supply of calories are required by humans at work there, because of the extreme conditions.
Everything in use in Antarctica, including food, is imported from somewhere. Specifically, the US Antarctic Programme imports fresh produce from New Zealand during the austral summer months.
Yes, there are mountains and valleys in Antarctica.