Subtractive process is used to form sculpture is by removing material from a block or mass of wood, stone, or any other material. This is usually done with sharpened tools.
Carving is one of the oldest sculptural techniques. Whereas, casting, modeling, and assembling are the other three techniques.
Sculptural materials that are soft, pliable, and are easily manipulated possess ephemeral property. Examples of such materials are plaster of Paris, wax, unfired clay, and plasticine<span>.</span>
Answer:
Enrichment helps satisfy both the physical and psychological needs of animals and allows them to make choices. Thus, animal enrichment creates a win-win-win situation for the animals, visitors and keepers! In the wild, animals must find food, defend territories, escape predators and build homes.
The difference in an area with high concentration and an area with low concentration is called concentration gradient.
<h3>What is concentration gradient?</h3>
Concentration gradient refers to the difference between the concentrations of two solutes in a solution.
A solution usually contains an area or region with higher concentration and an area with lower concentration.
The difference between these two areas of different concentrations is referred to as a concentration gradient.
Learn more about concentration gradient at: brainly.com/question/13050811
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Carl Von Linneaus developed the system for classifying organisms.
D. <span>They all contain carbon as an important part of their structure. Hope this helps you!! =')</span>