Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. Exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material.http://www.zlocomotive.com/mining-equipment/

The ocean is the origin of life. There are more than 200,000 species of creatures in the ocean, including about 180,000 species of animals and more than 20,000 species of plants. There are 25,000 species of fish in animals and more than 200 species of fish for human consumption. The ocean can provide human beings with green energy. http://www.sunruimarketing.com..../marine-environmenta

Charcoal is the carbon dioxide released during the combustion process, it is colorless and odorless, and the charcoal is burned, and there is no smoke in itself. Common grills have smoke when making products because oil and seasonings are dropped on the charcoal fire when making products. http://www.ouyalibbq.com/charcoal-barbecue-grill/

Heat pump water heaters use electricity to move heat from one place to another instead of generating heat directly. Therefore, they can be two to three times more energy efficient than conventional electric resistance water heaters. To move the heat, heat pumps work like a refrigerator in reverse. While a refrigerator pulls heat from inside a box and sends it into the surrounding room, a stand-alone air-source heat pump water heater pulls heat from the surrounding air and transfers it -- at a higher temperature -- to heat water in a storage tank.http://www.outesgroup.com/heat....-pump-water-heaters/

An oxygen sensor (or lambda sensor, where lambda refers to air–fuel equivalence ratio, usually denoted by λ) is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analysed. It was developed by Robert Bosch GmbH during the late 1960s under the supervision of Dr. Günter Bauman. http://www.keditesensor.com/in....take-air-pressure-se