Answer:
Pioneers moved west through a desire to make their fortune through the farming of previously unfarmed lands – too many people it was regarded as an extremely exciting opportunity, a chance of a new life. -The attraction of cattle farming encouraged people to move out west.
Explanation:
great question, the answer is bnbb
Answer:

Explanation:
thickness of aerosol layer is 2.5 km
zenith angle is 40 degree
we know that

where

is extinction coefficient
extiction cross section
N = Concentration





transimiitance 

