Answer:
1) The forming of a theory or conjecture without firm evidence. Or, investment in stocks, property, or other ventures in the hope of gain but with the risk of loss.
2) Speciation occurs when two or more populations become so genetically distinct that they no longer interbreed with one another. There are multiple ways this can occur. The natural ways speciation can occur are allopatric, parapatric, and sympatric speciation.
3) Before the Great Depression, there were limited regulations that governed the stock market. Investors were able to speculate wildly and buy stocks on margin or using borrowed money. ... The poor policies that governed the stock market proved to be another of the causes of the Great Depression.
I think 1 and 2 might be wrong but, hope it helped!
This is true, Columbus came to the new world in 1492, and from then on, more people migrated to the new world.
Yes, as the earth gets closer it gets warmer and as the sun gets further it gets colder
Explanation:
Volcanoes. It is an impressive sight: two sides of land so visibly ripped apart. The Mid-Atlantic Ridge that is to blame runs through the whole of Iceland
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.
