Answer:
One could be in the cell. The cell respires, thus producing carbon dioxide in it. So the concentration builds up in the cell. Diffusion is the net movement of particles from a region of high concentration to a region of low concentration, and the carbon dioxide concentration outside the cell is less, therefore the carbon dioxide molecules moves outs of the cell.
Another scenario is when perfume is sprayed into the air. The perfume particles collides with the air particles (lower or no concentration of perfume). This process goes on and on. This is diffusion since the concentration perfume particles collides with the less concentrated particles of perfume.
A. Abrasion
Reason - cause by scraps on rough surface which breaks skin on outer layer.
This Is False I Believe. The Number Of Protons Is The Same As The Number Of Electrons , Not Valence Electrons
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Answer:
True
Explanation:
Newton’s First law of Motion states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force.
Answer:Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt and clay-rich soils, and are easier to till than clay soils. ... Loam soil is suitable for growing most plant varieties.
Explanation: