Which factors could be potential sources of error in the experiment? Check all that apply.

How has the elimination of trade barriers affected the movement of goods among member countries of the european union? a. member countries are able to produce all the goods they need. b. goods can move freely among member countries. c. member countries no longer need to trade with countries outside the eu. d. larger countries are able to import more goods than smaller ones.

Describe the relationship between population growth consumption and the environment.

1. describe at least 3 similarities or differences between homo habilis and australopithecus 2. describe at least 3 similarities or differences between cro-magnon and neanderthals.