What actions show conserving by reusing? Choose the two correct answers

A. use an old glass jar to hold pencils
B. eat broccoli that is about to go bad
C. throw away old class notes
D. carry groceries home from the store with cloth bags
E. put old newspapers in a collection bin

HELP A. P.S

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

answersilicon (si); oxygen (o);