One is definitely tourism.
Explanation:
The factor that jeopardizes the ecosystem in Eastern Europe is the tourism industry. Individuals simply travel there and have a fabulous time yet they don't pay attention and leave beaches dirty. They are not dealing with nature and the administrations can't do much since sightseers leave a lot of money for the nations.
I would go with number one, because that's the only option that isn't negative.
There are total 12 secton, whereas each has a length of 3/4 yards. We just have to multiply 3/4 with 12. It is also equivlent by adding 3/4 12 times.
Changes in the orbit of the earth caused the ice sheets to spread across Canada.
Answer:
isn't this math? why Is it in the Geography section