If you have ever noticed a sharp odor in the air after a thunderstorm, you might be smelling ozone. Ozone can be formed from oxygen gas when lightning passes through the air. Which statement is true about ozone?
A. Ozone helps human health no matter where it occurs.
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B. Ozone is a harmful pollutant no matter where it occurs.
C. Ozone high in the atmosphere is a pollutant, but near Earth's surface, it provides protection from harmful rays.
D. Ozone high in the atmosphere protects Earth's surface from harmful rays, but near Earth's surface, it is a pollutant,

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante