Methane occurs when anaerobic (no air) bacteria decompose organic material. In this reaction there is no oxygen to convert carbon containing molecules to CO2 so th reaction only goes to CH4 which can still be oxidized further. Natural gas is thought ot be the result of decomposition of this typ in the distant past.
Thallium is a naturally occurring element in the Earth's crust. It is not a man-made element.
Phosphorus is naturally occurring. It is found in rocks
Hydrogen is the most abundant element in the universe and is found naturally in various forms on Earth, such as in water and organic compounds. However, most of the hydrogen used as fuel or in industry is produced through man-made processes such as electrolysis of water or steam methane reforming.
No. It is a "Rare Earth"- found only in trace amounts, but naturally occurring.
Potassium is a naturally occurring element found in nature. It is not man-made. It is an essential mineral that plays a crucial role in various bodily functions.
Naturally produced in the intestines of of many mammals. Methane is the reason you can light your farts.
Potassium is naturally made
It was caused naturally 5.3 million years ago maybe due to the movement of the African Plate
It was caused naturally 5.3 million years ago maybe due to the movement of the African Plate
naturally occurring.
Thallium is a naturally occurring element in the Earth's crust. It is not a man-made element.
No. It's man-made.
No - it's a man-made object. But the stuff it is made from is naturally occurring.
No, Niagara Falls is not man-made. It was formed naturally over time as a result of erosion caused by the flow of the Niagara River over the Niagara Escarpment, creating the iconic waterfall that we see today.
Tornadoes are storms, and thus naturally occurring.
yes, concrete is man made, stone is naturally ocurring.
Phosphorus is naturally occurring. It is found in rocks