Please choose the correct answer to the question: As a result of rain forest deforestation, some organisms lose their habitats. Which is also an effect of rain forest deforestation?

Answer1: a decrease in the rate of soil erosion Answer2: a decrease in the fertility of the topsoil Answer3: an increase in the production of plants used for medicines Answer4: an increase in the amount of oxygen produced in the atmosphere

Answer format: answer1/answer2/answer3/answer4