Speciation occurs when: * two populations become geographically isolated

enough differences accumulate between two populations that they can no longer
interbreed

gene mutations
accumulate

all of the above

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

Resperation is a way to release carbon back into the atmosphere

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.