1. Natural resources are valuable things found in nature. May be renewable (e.g. wind, sunlight, timber) or non-renewable (oil, coal, gold).
2. Resource development refers to improving the ability to harvest resources. For example, building mines or oil wells. May also refer to improving the infrastructure needed to harvest natural resources, such as by building roads to distant farmland.
3. Fallow land is undeveloped land. In farming this refers to land where no crops have been planted. It can be converted to cultivatable land via plowing and farming or via the other methods of resource development discussed above.
4. Technology has increased our ability to harvest natural resources - e.g. complicated oil rigs on the ocean. Economic growth has massively increased demand for natural resources and also provided trade and distribution routes for the resources.
