Not all the elements occur naturally; some elements are man-made.
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.
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.
Gold is a natural element. It is normally found as a solid metal and is relatively rare and expensive.
The radon isotopes 218Rn, 219Rn, 220Rn and 222Rn are natural isotopes. The other isotopes are manmade. See also the link below.
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.
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.
In the attached list manmade elements are: technetium, promethium and the elements with atomic number between 94 and 118.
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.
Gold is a natural element. It is normally found as a solid metal and is relatively rare and expensive.
appy is the naturally occurring base.