Please choose the correct answer to the question: In the geologic past, abiotic factors such as volcanic eruptions have had an impact on the availability of resources. How can volcanic eruptions impact the availability of resources?

Answer1: by decreasing the thickness of soil Answer2: by causing more heavy rains to erode topsoil Answer3: by disrupting the sunlight from reaching producers Answer4: by causing the surface of Earth to be warmer than usual

Answer format: answer1/answer2/answer3/answer4