the soil used in construction has been handled by man and the natural soil forms naturally as it is
The hardest naturally occurring substance is called diamond. It is a form of carbon.
Terrestrial geology is the study of the earth, which is a terrestrial body. Terrestrial geology differs from planetary geology, which is the study of other planets.
A harbor
Dig a large pit over an underground ore body, dig out the ore body, process the material from the ore body to extract the desired material (e.g. coal, metal, oil sand/shale). When done the pits used to be abandoned, now in the U.S. the EPA requires remediation.
Yes... It's a Tornado, but the difference of a waterspout hits a body of water. And a Tornado hits a body of land.
you don't. generally they are made from natural material such as cat gut. therefore, your body can safely absorb the material.
A reservoir can be a natural or artificial lake. This is where water is collected or stored. It can be created in river valleys through the construction of a dam.
aquifer
it is the square root of the ratio of the effective stiffness to the effective mass of the body. vVery difficult to obtain due to the infinite degrees of freedom the human body has.
You are thinking of silk, which was not a 'natural material exclusive to China' so much as the method used to develop silk from the silkworm was a technique developed or invented by the Chinese. Any body with silkworms can make silk, but only the Chinese (at the time) figured out how.
Contamination is the presence of a minor and unwanted constituent (contaminant) in material, physical body, natural environment, at aworkplace, etc.
Because the material is better when working properly they repair themselves up to a point.
Deer fly bites itch because of the enzymes they release into the skin. It is a natural reaction by the body to foreign material.
Shirts are normally made of a polyester mesh, which does not trap the sweat and body heat in the same way as a shirt made of a natural fiber.
Nematodes do not have segmented bodies like annelid do.
Biomaterial is any substances other than drug, which can be a combination of synthetic and natural material, that can be used in treatment or replacement of any tissue organ or function of the body. For example contact lens, prosthetic implants, stents, artifical heart valve etc Biological material are natural material which is already present inside a living organism. For example many protein, cellulose, collagen, cells, chitin etc.
This amount of material is the mass.