Which of the following energy producing methods can sometimes lead to riverbed erosion?
a.
solar
b.
wind
c.
hydroelectric
d.
geothermal

the answer is c

The answer is C. I hope it helps.

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.