Answer:
16 years because it usually occurs in younger people/teens
Answer:
The tundra is the coldest of the biomes. It also receives low amounts of precipitation, making the tundra similar to a desert.
(Source: https://earthobservatory.nasa.gov/biome/biotundra.php)
The answer is none of the above, i dont know how but i was just asked the same question and got it wrong so yeah lol
