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>
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The pitch of a sound is how high or low a sound is when we hear it, whereas the intensity of a sound is the energy/vibrancy of the sound over an area and depends on the frequency of the sound as well.
Remember the cell theory by Virchow that states that all cells come from pre existing cells, if a single cell dies, it can be replaced unless it's a brain cell.
I think it A because Cyanobacteria absorb co2 from the atmosphere and then release oxygen To the atmosphere