natural
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Yes they are man made..
Yes, man-made rocks, such as concrete or engineered stone, can be considered rocks, but they differ from natural rocks in their formation process. While natural rocks are formed through geological processes over time, man-made rocks are created by humans using various materials and methods. They can serve similar purposes in construction and design but are classified differently due to their origin. Ultimately, their classification as "rocks" depends on the context in which they are being discussed.
Gravel can be both man-made and natural. Natural gravel is formed through the weathering and erosion of rocks over time, typically found in riverbeds, lakes, and other geological formations. Man-made gravel, often referred to as crushed stone, is produced by mechanically crushing larger rocks into smaller fragments for use in construction and landscaping.
No, Uranium is naturally occurring. But all elements beyond uranium are man-made.
Natural resources are, as the name implies, resources that are made in nature, not man made. Examples would be water, trees, rocks; just anything in nature.
It is natural but there are man-made imitations.
Natural objects include anything that was not made by people; examples include trees, rocks, mountains, clouds, the moon, etc.
It can be made from natural or man made fibres.
Is limestone natural or man made
natural feature
Boron is a naturally occurring element that is found in the earth's crust. It can be found in compounds in rocks, soil, water, and plants.
Man-made and Natural Resources