CFC's are naturally occurring. Some people disagree and say they are completely man made.
berkelium
True. If fusion can be made to work in manmade equipment, for power production, (and this is not certain), there should be much less radioactive waste than for fission reactors. The product of the fusion, helium, is harmless. The engineering details of such a plant have not been established, but the energy produced will presumably be extracted from materials surrounding the reaction chamber which absorb the neutrons produced, so these materials will become irradiated and radioactive. Whether the structure will remain for the life of the plant or perhaps neutron absorbing materials have to be replenished from time to time is unknown, but obviously there will be some radioactive waste to be dealt with.
The Sabbath was made for two reasons; the first was so that man might have rest and the second so that man would be reminded of his God and that he would have something to show to himself his obedience and love to God.The Sabbath itself is not a thing to be honoured it is only the God that commanded that is important, so if God removes that commandment, then it is no longer important.
No. By definition a mineral is naturally occurring.
No, it is a naturally occurring petrochemical.
No. Lithium is a naturally occurring element.
Not all the elements occur naturally; some elements are man-made.
Both. Zinc can be found in nature and also can be manmade.
Hydrogen is the most abundant element in the universe and is naturally occurring. However, most of the hydrogen used by humans is produced through industrial processes such as steam methane reforming or electrolysis of water.
A dress is manmade. It is created by humans using a variety of materials such as fabric, thread, and embellishments. It is not naturally occurring in nature.
Pumice is a naturally occurring volcanic rock.
Zircon itself is a naturally occurring mineral, so it is not manmade. However, some zircon gemstones undergo treatments, such as heat treatment, to enhance their color or clarity, but the base mineral itself is natural.
Mendelevium is a manmade element and does not occur naturally in nature. It is produced by bombarding einsteinium with alpha particles in a particle accelerator.
In the attached list manmade elements are: technetium, promethium and the elements with atomic number between 94 and 118.
Gold is a natural element. It is normally found as a solid metal and is relatively rare and expensive.