Alex is writing an article on primitive people. He has to write about the use of biomass in primitive times.
What should he write?
A. Primitive people used stones as tools.
B. Primitive people used animals as pets.
C. Primitive people used wood as a source of energy.
D. Primitive people used coal for cooking food.

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.