Which of the following can be said about the use of agriculture?
a. it stunted the growth of civilization and development.
b. it prohibited the use of machinery.
c. it has included practices that led to pollution of soil and water.

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior