Answer:
It took climate change, fertile river valleys, domestication of crops and animals so that the hunter-gatherers became sedentary farmers.
Explanation:
Initially, all humans were hunter-gatherers. This was due to multiple reasons, with one the biggest one probably being the climate which was not enabling good conditions for the hunter-gatherers to transform their lifestyle. All other conditions needed were stopped because of the climate conditions, so humans had to do what they could to survive in those conditions.
About 10 years ago though the bad climate conditions ended, or rather the Ice Age ended. This resulted in a much warmer climate, which in turn created much more water bodies like rivers and lakes, much more vegetation, and they contributed to the creation of much more fertile soil.
With these conditions in place, the humans quickly saw that there is huge potential in some plants and animals, so they started to farm them, select the ones with the best characteristics, and gradually producing enough food for themselves. With the food problem solved, humans didn't have the need to wonder around all the time, so they started abandoning the hunter-gatherer lifestyle and started settling in one place.
As they approach North America, hurricanes commonly move north on clockwise-curving paths due to the:- <u>Coriolis effect</u>
<u>Coriolis effect</u>
- An effect whereby a mass moving in a rotating system experiences a force (the Coriolis force ) acting perpendicular to the direction of motion and to the axis of rotation. On the earth, the effect tends to deflect moving objects to the right in the northern hemisphere and to the left in the southern and is important in the formation of cyclonic weather systems.
The key to the Coriolis effect lies in Earth’s rotation. Specifically, Earth rotates faster at the Equator than it does at the poles. Earth is wider at the Equator, so to make a rotation in one 24-hour period, equatorial regions race nearly 1,600 kilometers (1,000 miles) per hour. Near the poles, Earth rotates at a sluggish 0.00008 kilometers (0.00005 miles) per hour.
To know more about Coriolis effect, check the links.
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1. The weather is made out of the conditions in the atmosphere at a particular place at a particular time, or rather at the moment. There are lot of different weather conditions, and they all depend on lot of different factors in order to occur. In order to have snowfall, there has to be cold air masses that will encounter humid air masses along the way, freeze the water vapor and produce snow. The rainfall occurs if there are warm and humid air masses that encounter either cold air masses, or some high mountain, that will cause condensation, and thus rainfall. The weather tends to be cold when there is cold air masses moving or forming into an area, while the hot weather is a consequence of the hot and dry air masses that form over the continents.
2. The weather is very hard to predict, even on the short term. The problem with the prediction of the weather is that it changes very quickly, and the main reason for that is that it is influenced by numerous factors, all of which can contribute to sharp changes in the weather conditions. Some of the factors that influence the weather on Earth are the planet's inclination, the planet's spinning around its own axis, global wind patterns, ocean currents, topography of the area, formation and movement of the air masses etc.
3. The ozone layer is a layer into another layer, the stratosphere. The ozone layer is extremely important, as it has the property that enables it to absorb very big amount of the ultraviolet radiation from the Sun. This layer is actually crucial for the survival for pretty much all organisms on Earth, as it stops the ultraviolet radiation from frying them. The depletion of the ozone layer is a serious problem, as it will cause larger portion of the ultraviolet to get to the surface, which will cause serious damage to most of the living organisms, including the humans, and maybe even result in mass dying out of the species if the depletion becomes too big.
Answer:
1.foreign diplomacy,
2.military defense,
3. administration of justice,
4.provision of public goods and services,
hope this helps...
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It will be 4 meters the U.S will travel in 100 years.
