Answer:
Earth is the largest of the inner planets and was created like all the remaining planets in the Solar System, approximately 4.6 billion years ago. The early Earth was formed by the collision and fusion of smaller rock fragments, the so-called planetesimals
Explanation:
Scientists estimate that the Earth began to form about 4.6 billion years ago. Protoplanets had to experience various collisions, so that the Earth as a planet originated from the collision of several protoplanets. Each collision released a large amount of energy, and the larger protoplanets contracted under their own gravitational influence. A last collision caused the creation of a celestial body the approximate size of the present Earth, that has received the name of proto-Earth. The early Earth was a hot volcanic body. The metal reached the melting point and the denser material sank and formed the core, while the lighter materials rose and became the mantle and crust. This is how the layers of the Earth were formed. Little by little the planet lowered its temperature, many of the impact craters were covered with water, photosynthetic organisms appeared and an atmosphere was formed, all of which would give the conditions that make the planet the place of life.
Is there choices we can choose from?
Answer:I’m sorry i don’t know the answer to this question good luck though
Explanation:
<span>Prior to the standard gauge track, railroad travel was much more arduous and painstaking. There were originally several types of gauges used on a railway track. This caused long train trips to require multiple stops in order to change train cars. With the standard gauge track on trains in the 1800s, multiple changes were no longer necessary and so the trips were shorter.</span>
The correct answer is b) a growing spirit of democracy and equality between classes”
In “Democracy in America” by Alexis de Tocqueville in 1831, he said in the first phrases:
<em>“Amongst the novel objects that attracted my attention during my stay in the United States, nothing struck me more forcibly than the general equality of conditions. (…) The more I advanced in the study of American society, the more I perceived that the equality of conditions is the fundamental fact from which all others seem to be derived, and the central point at which all my observations constantly terminated.”</em>
