The continents are not drifting, exactly. They are physically attached to the tectonic plates, which are basically enormous slabs of rock that are stacked on top of each other. The tectonic plates cause the continents to move in a process known as <u>plate tectonics,</u> also causing earthquakes, sink holes, and a number of other natural disasters. I think the best way to make a visualization of this is making a plate of pancakes, and stacking them while only half of each pancake is on top of the previous one, and as it goes up, it becomes more steep, until the point where they fall over.
Honestly, I think the United States would eventually look the same as it does now. If they had not bought the land, they likely would have gone to war for it. It is very unlikely that they would have let it stay there as part of France or an independent country, both because of Manifest Destiny and for national security.
Answer: The correct answer is : They must have separate compressed air tanks to fill their air reservoirs
Explanation: Modern air rifles used for small game have a small tank of compressed air integrated in the gun. Large caliber air rifles are designed to hunt larger games. Depending on the weight of the projectile, you can usually make multiple shots before filling each air tank.
Disease (The harsh winter that killed around half of the men)
Lack of organizational skill (ex. not having set Religious practices as they did in Britain, sending over only mean, not being well prepared in general)
Greed (especially in the gold industry)
Some ill relations with the Indians (although the first Thanksgiving was mostly peaceful, some problems arose)
I hoped I helped(: but I give you only 4