Assignment #111. Which of the following environmental problems are largely caused by persistent poverty?a. Deforestationb. Soil erosionc. Ground water contaminationd. All of the above2. A major cause of environmental degradation in developing countries is3. A resource that is publicly owned and allocated under a system of unrestricted access isknown as4. Which of the following is an argument in favor of trade liberalization?4. Explain the situation of the free rider problem.The free-rider problem is an economic issue that is considered an example of market failure.This occurs when most, not all people work together to achieve a collective goal that benefitseveryone’s lives. The downside is that people who do not work towards this goal also get toreap the benefits of the other’s work.