can you possibly provide the passage because without it i cant really answer sorry i wasn't much help
Yes it can be studied by the scientific method because it is testable and observable.
Answer:
Parts of the U.S. state of Alaska and the countries of Canada, Greenland, Iceland, Norway and Russia are all in the Arctic tundra biome. Regardless of how cold and bleak the weather may be in the northern contiguous states in the middle of winter, technically, the tundra does not extend below northernmost Canada
Explanation:
D). Carcinogens are chemical factors in an organism's environment that can cause spontaneous mutation.
