Please choose the correct answer to the question: More sulfur dioxide is being added to the atmosphere. How will this most likely affect the hydrosphere?

Answer1: There will be a decrease in sea level. Answer2: The acidity of the ocean will increase. Answer3: There will be an increase in fresh water. Answer4: The temperature of the oceans will decline.

Answer format: answer1/answer2/answer3/answer4
Answer: answer2