Answer: B
Explanation: The reason for this is that a conic projection is good for lay out of a globe but for acurate viewings it’s the worst and the Mercator projection although is the most common projection it strechs the size of things for example you could say Greenland is around the size of africa but in reality it’s 14 times smaller Therefore the Equal-area projection is the best.
We can estimate the age of an open cluster of stars by examining (The turnoff point of the cluster)
Answer:
A cannot be accurately measured
A biggie: the transcontinental railroad. Because it would economically improve wherever it was, both the North and the South competed for the railroad to be in their respective territory, evidenced by the Kansas-Nebraska Act and the Gadsen Purchase and induction of California as a free state in 1860.
In addition: people could get land cheap because it was abundant and might leave to start afresh economically.
There's other stuff I can't remember as clearly, but there's a little and I hope it helps :)
It can affect by farming and rain hope this helps ☺