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Talja [164]
3 years ago
6

What is electricity?why has it been called white coal?​

Social Studies
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer:We need cial because we get power from the power plant that needs coal⚡️but i dont really know y it is called electricity tbh but hope it can help u

Explanation:

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1. How did people communicate in ancient and mediaeval time explain with examples ?
leva [86]

The question is extremely vague. “Ancient” covers a large period of time that had varied technologies. “Communication” is also a very vague term. That being said, I will attempt to give an answer.

I am assuming that you are asking about human communication. One of the things that distinguishes humans from animals is speech. Probably the most ancient means of communication was speech. Hand gestures, body language, and facial expressions are also a means of communication. Dance and music were also very ancient means of communication.

Messengers with verbal messages, signal fires, totems, banners, cave art, etc. were ancient means of communication that predate history.

Proto alphabets and pictographs were used as early as 60,000 years ago. Such script was found on egg shells dating back that far and found in southwestern Africa.

Genuine writing began as early as 5,000 years BC with the Vinca script (although this is disputed). It is undisputed that cuneiform script was in use in what is now Iraq about 3,000 BC. This early writing was typically impressed on clay tablets and allowed to dry. Small tablets could be transported between distant locations. Some script was also present on pottery. Rudimentary codes were used for distant communication with signal fires. Drums could be heard at great distances and were also used to communicate. Once paper was invented, things really took off, literally. Messenger pigeons were used as early as 1150 in Baghdad and also later by Genghis Khan. This ancient means of aerial communication was still in wide use in World War I.

More common were couriers on horseback that would take written messages quickly between people at distances. In ancient Persia (Iran) they had messengers, called angros that would carry messages in stations that had a day's ride distance along the royal road. The riders were exclusively in the service of government. A message could be transported from Susa (south western Iran) to Sardis (western Turkey), a distance of 1,677 miles in just seven days. The same journey took ninety days on foot. This type of system was later used by the Romans. Messages were also transported by boats and ships.

Even ancient communication could be relatively fast.

6 0
2 years ago
List three areas that have very low chlorophyll concentration on land. What characteristics of these areas cause such low concen
umka21 [38]
Basically, areas without much plant life have low chlorophyll concentration. In this case, extreme climates characterizes these areas. Specifically, the desert, polar tundra, and high mountain ridges are three areas which have low chlorophyll concentrations. The main characteristics are that they have no soil, shallow soil, or soil that lacks in nutrients, which makes it not suitable for plants to grow; they also have limited water available. Since chlorophyll is contained in vegetation, any area without plants will lack chlorophyll. Hope this helps!

Answer: Desert, Polar Tundra, and High Mountain Ridges because of lack of soil or nutrient in the soil, and lack of water.
7 0
3 years ago
Which of these political system would have a “supreme leader”
Natalija [7]

what are the answers? I need to know the options :/

3 0
3 years ago
(ળ) નીચેfi રૂપિયોળો ગુજરૉલીનાં áëળો.
Vadim26 [7]

Answer:I dont get this sorry

Explanation:

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3 years ago
Somebody please help :(
My name is Ann [436]

Answer:

B or A

Explanation:

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