It is important to maintain septic systems in order to <span>prevent untreated sewage from contaminating groundwater</span>
Answer:
1. Hydrogen
Atomic # = 1
Atomic Mass = 1.00794 ( If you round it it's 1.008 )
# of protons = 1
# of neutrons = none
# of electrons = 1
Answer:
D ko alam pasensya ka na ha
b) intervalul de timp t3 in care prin fata sa trece vagonul urmator
Sper că am ajutat!