Determine the amount of current going through a 50ohms; resistor with a voltage of 120 v

The clouds are grey and ground is wet. a quantitative b qualitative

Can someone me with questions 15 to 17 plz.

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.