What cultural practices spread northward from the civilizations of central mexico

What is the result of the greenhouse effect? a. heat is deflected from the atmosphere. b. heat is released from the atmosphere. c. heat is kept in the atmosphere. d. plants are able to grow in the tropics where the air is the heaviest.

[bws.05]where would uncharged particles be most likely found in an atom? o on the electrons o inside the protons o inside the nucleus outside the nucleus

Name the two rivers that run through the fertile crescent. how were the rivers both positive and negative to societies of the fertile crescent?