Question: As a result of rain forest deforestation, some organisms lose their habitats. Which is also an effect of rain forest deforestation?

What is the correct answer to the question from the following choices?
Pick your answer from:
1). a decrease in the rate of soil erosion
2). a decrease in the fertility of the topsoil
3). an increase in the production of plants used for medicines
4). an increase in the amount of oxygen produced in the atmosphere
2).