Answer:
Essay
Explanation:
In this modern world, due to advance information technology various means of communication is used for different purposes. For sending documents from one place to another, people use communication medium such as e-mail. For giving message through their voice, people use communication medium such as voice chat. Video chat is also a communication medium used by the individual to chat with their friends and relatives through live video. These communication mediums make the world into a small village where people interact with each other which are present at a large distances.
Answer: Winter shadows are long because sunlight is spread out. The Sun appears low in the sky even at noon. Summer shadows are short because the light is concentrated in a small area.
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They can be used to contain cellular waste and to isolate materials that may be harmful to the cell.
They are beneficial because humans not only live but also perform all economic activities on land.
