Answer:
a the states for ratification
Electrons orbit the nucleus of the atom in electron clouds.
"Dalton's Atomic Theory
"1) All matter is made of atoms. Atoms are indivisible and indestructible.
"2) All atoms of a given element are identical in mass and properties
"3) Compounds are formed by a combination of two or more different kinds of atoms.
"4) A chemical reaction is a rearrangement of atoms"
source: http://www.iun.edu/~cpanhd/C101webnotes/composition/dalton.html
The civil rights movemement of 1940
Answer:B
Explanation:the bringing of unfamiliar diseases to American Indians