Answer:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
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By diffusion. Diffusion means the net movement of materials from a region of higher concentration to a region of lower concentration down the concentration gradient
Answer:
B the difference between F and G
Explanation:
Its the sourse of the angle which gives you 180* of 90* then leads you to the agle corners/numbers
Calcium oxide based on the above explanation is an ionic compound.
<span>A beam of light aimed at a particular area is known as focused. The focused beam is concentrated in one area and not disbursed like other lights there to set mood, but instead to give focus to one individual or group on stage.</span>