The age of the Earth is around 4.6 billion years old
It was all of the above
The idea began with the expansionist program called the Manifest Destiny, a doctrine which said that it was God's plan for the United States to grow from coast to coast.
The Homestead Act was used to encourage families to settle in new areas by providing them 160 Acres of free land on the condition that they stay there for 5 years.
The discovery of Gold and the development of railroads further helped make it easy and more attractive to settle in western lands.
When modernization reached the west coast and populations increased, these areas became attractive areas of settlement for everyone
B. It controls the Panama Canal
The correct answer is - 3.
The number 3 location is the one that is most suitable on this landscape for the emergence of water as a spring. The reason for that is that it is lowest point of the landscape on the image. Because the terrain falls towards this part, the rain that falls and manages to get into the ground, will be moving towards that direction. Since the land is coming to an end at the number three spot, and it is also falling downwards, the water will have no big problem to manage to penetrate through the ground and come out on the surface, as it will have a big pressure pushing from up towards down.
-10 and -12 since you subtract 10 and 12 from the 0.
