In Earth's climate system, positive feedback's tend to amplify changes in the system, and negative feedback's tend to encourage the system against change. Having a positive feedback gives the newest updates and brings the problems on the table, thus changes are always a must when there's proof that suggest there's big problem, but when the feedback is negative, lacking, then there's not pressure for changes, so anyone who has interest in not changing will push for that, thus encouragement of taking no changes. <span />
Answer:
D
Explanation:
Our Axis Always point towards the north star no matter where we are in the orbit.. Hope it works
Answer: A.Busy commercial districts and architecture that reflects both modern and traditional influences
Explanation:
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.
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To produce electricity for a city in a developed country, photovoltaic solar farms would need to occupy a large amount of land, as the demand for electricity in developed cities is very high and this would require a high production of solar energy. The occupation of such a large piece of land could hinder the sustainability of the region and of this energy production system. This is because the occupation of large areas of land could promote the destruction of habitats, deforestation and water and soil pollution due to the hazardous materials that are used to build solar panels, such as lead, gallium arsenide, diselenide from copper-indium-gallium, among others. This would cause the production of a non-polluting type of energy, causing pollution due to its installation.
