How did new tools revolutionize agriculture during the Neolithic era? New tools saved early humans labor and time.
New tools made it possible to produce less food.
New tools allowed early humans to grow plants without water.
New tools helped early humans develop different seeds for planting.

In shifting to a defense policy based upon the concept of "flexible response," president kennedy was indicating that he had grave doubts about thevalue of which previous defense policy? a massive retaliationb collective securityc containmentd air power

European expansion into africa left native regimes intact but had a strong impact on local societies what does this mean

Since so many american men during world war ii were fighting overseas, the factorices lay empty. this presented a problem the u. s. military was in such dire need of manufactured goods bullera, tanks, airplanes , ships, and many other things. whose point of view si best reflected in these lunes?