Natural resources are materials from the earth and are either renewable or nonrenewable. some of these resources are recoverable after their first use. an example of resource recovery 

The answer is composting plants and food wastes. Resource recovery is extracting materials that can be recycled and processed for other uses.

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.