What is mean of 'Revolution'.​

Which statement below accurately describes the carrying capacity of any ecosystem? a. it is not affected by any abiotic or biotic resources. b. it does not affect the species of an ecosystem. c. it is completely dependent upon the food supply. d. it is affected by both abiotic and biotic resources

Ascientist who studies prehistoric and historic people by analyzing artifacts is a(n) a. historian b. botanist c. archaeologist d. anthropologist

If you wish to make an explicit comparison of two dissimilar things without using like or as you would use the