Please choose the correct answer to the question: Fertilizers added by farmers to the soil contain high amounts of nitrates. How do fertilizers affect the nitrogen cycle?

Answer1: More nitrates are available for plants to absorb. Answer2: More nitrates are available for animals to eat. Answer3: More nitrogen gas is released into the atmosphere. Answer4: More nitrogen is converted by bacteria into nitrates.

Answer format: answer1/answer2/answer3/answer4