What is a hypothesis? a) an observation b) a possible answer to a question c) a solution to an experiment d) an experiment

American sign language is a. not a distinct language by definition b. processed primarily by the left hemisphere, similar to other languages c. processed more or less equally by both the left and right hemispheres d. processed primarily by the right hemisphere because it is based on spatial characteristics

Which of the following is one of the innovations that neolithic farmers become more productive? a) plow b) windmill c) tractor d) reaper

Which choice best describes the general trend for the countries shown, for the period 2008 - 2010?