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.
Answer:
Well think about the size of our world. Its pretty big and it would be really hard to map something out the size of the world. Using a scale like this 1:1000 because it shows 1 for every 1000 miles or kilometers. Or even greater units of measurement, less spaced and yet still an accurate representation. If put through the backed scaled equation, you would get the actual size jsut by multiplying the number in this case 1 or more by 1000 and you’d get the exact measurements.