Suzy is examining a brass lamp. If brass is a mixture of copper and tin, what can Suzy conclude? A Brass is an impure substance composed of copper, Cu, and tin, Sn.
B Brass is a pure substance represented by the symbol B.
C Brass is a pure substance represented by the symbol Br.
D Brass is an impure substance composed of copper, Co, and tin, Tn.

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

silt loam

hope this

sex cells are usually half's then they find another half and make a fertilize egg

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added