Which of the following developments occurred first?

a.
cash crops
b.
animal domestication
c.
the industrial revolution
d.
the green revolution

Who came up with the theory of evolution

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics? he proposed that plates carry parts of the seafloor. he theorized that pieces of earth move for a limited time. he suggested that the asthenosphere is broken into segments. he observed seafloor cracks similar to existing cracks in the continents.

In a scientific experiment, a is any factor that can be changed or be changed