The document discusses different types of resources including renewable and nonrenewable resources. Renewable resources like solar, wind, and water can be replenished within a short period of time, while nonrenewable resources like coal, oil, and gas cannot be replenished on a human timescale. Resources can also be classified based on their origin as biotic (living) or abiotic (non-living), as well as their potential, actual, or reserve levels. Unequal distribution of resources between countries can lead to interdependence, uneven development, and conflicts over control of resources. Conservation aims to use both renewable and nonrenewable resources efficiently and extend their availability for future generations.