IM GUESSING ENTIRELY BECAUSE THE GALAXY IS SO FAR AWAY THAT KNOW BODY EVER SEEN IT ITS IMPOSSIBLE FOR US TO MAKE IT THERE ITS ALOT LIGHTYEARS AWAY
Answer:
Large population centers, or urban areas (1), allow civilizations to develop, although people who live outside these urban centers are still part of that region’s civilization. Rural residents of civilizations may include farmers, fishers, and traders, who regularly sell their goods and services to urban residents.
The huge urban center of Teotihuacan, in modern-day Mexico, for example, had as many as 200,000 residents between 300 and 600 CE. The development of the Teotihuacano civilization was made possible in part by the rich agricultural land surrounding the city. As land was cultivated, fewer farmers could supply more food staples, such as corn and beans, to more people.
Trade also played a part in Teotihuacan’s urban development. Much of the wealth and power of Teotihuacan was due to excavating and trading the rich deposits of obsidian around the city. Obsidian is a hard volcanic rock that was highly valued as a cutting tool. Teotihuacano merchants traded (exported) obsidian to surrounding cultures in exchange for goods and services imported to Teotihuacano settlements.
Answer:
The ambient temperature was predicted to rise at a slow pace like 2-3 degree Celsius in one thousand years earlier with the then human activities index on environment. But practically the human activities index is so high that it resulted in 4 degrees rise in 200 years only as per a recent report that is responsible for vanishing of glaciers in large scales from both poles and of polar temperature by more than 20 degree Celsius. Thus the present rate is so high that more than expected damage and change to environment is expected.Therefore we have to take advance and calculated steps to protect the environment. Please go through recent periodicals and updates to assess your predictions.
The greenhouse effect is the trapping of heat under the atmosphere, which is a natural effect caused by greenhouse gases. ... However, when greenhouse gas concentrations are too high, they trap too much heat and increase the temperature on Earth, causing the enhanced greenhouse effect.
Explanation:
Answer: The tiny fish in the water-filled plastic bag wouldn’t catch the eye of the casual observer, but to biologists they were part of a great hope. The fish were spotfin chub, a tiny, threatened fish, and these were carefully reared in a fish hatchery and bagged for transport and release into the Cheoah River where hopefully they would thrive.
Think fish in the mountains and you probably think trout, however the Southeast is home to more than 490 fish species, and the Southern Appalachians are home to roughly 300 fish species. Why so many? The Southern Appalachians are part of several river basins draining to the Atlantic and the Gulf of Mexico. Also, the Appalachians are hundreds of millions of years old, and they’ve never been glaciated nor inundated with oceans during that time, giving evolution a long, uninterrupted period in which to work.
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