Answer:
because there might be changes in the future which could make the estimates unreliable for example war or decline in economy
Explanation:
I don't know whether this was one of your options, but South Asia can be very well characterized as a Sub-continent.
In fact, it's is commonly referred to as "the Indian Subcontinent" or even simply "Subcontinent". One of the reason for a distinction of this part of the land is that it lies on a different tectonic plate.
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Because the rays of the sun gives off a stronger brightness.
Also people want to see the effect of the eclipse and are dumb enough to stare at it, which u really can't due to such brightness.
It will be 4 meters the U.S will travel in 100 years.
