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Natural resource - resources that exist without any actions of humankind. This includes all valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land along with all vegetation, and animal life.
Renewable resource - A renewable resource is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale.
Nonrenewable resource - A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a quick enough pace to keep up with consumption. An example is carbon-based fossil fuel. The original organic matter, with the aid of heat and pressure, becomes a fuel such as oil or gas.
Imports - An import in the receiving country is an export from the sending country. Importation and exportation are the defining financial transactions of international trade. In international trade, the importation and exportation of goods are limited by import quotas and mandates from the customs authority.
Exports - An export in international trade is a good or service produced in one country that is sold into another country. The seller of such goods and services is an exporter; the foreign buyer is an importer. Export of goods often requires the involvement of customers authorities.
2.) U.S., Saudi Arabia, Russia, Canada, and China
3.) Resources are important for the development of any country. For example, to generate energy, one need fossil fuels; and for industrial development, we require mineral resources. Natural resources are getting scarce with the increasing population, so it is essential to conserve them.
4.) Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished. Renewable resources are replenished naturally and over relatively short periods of time.
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