In arguing that current patterns of immigration hurt the american economy in his 1996 article "the new economics of immigration: affluent americans gain: poor americans lose," what did harvard economist george borjas emphasize

How did the life of sharecroppers affect their children? children went to school because the farms were small, with little work, children had to work on the farm, so they rarely went to school children learned skilled professions as they worked around the farm. children left home when they became adults because the land wasn't theirs.

What is one example of trench warfare ?

What happened 10 million years ago? if u answer, u get 50 ! plz answer ; -;