Answer:
The Crust is mostly made up of loose materials.
The Mantle is made of up of a thick solid rock substance.
The Outer Core is made of super heated liquid molten lava.
The Inner Core is believed to be solid ball of mostly iron, and nickel.
Explanation:
Answer:
So the Earth moves at about 110,000 km/h around the Sun (which is about one thousand times faster than the typical speed of a car on a highway!) ... This is the case for Earth's orbit. But not all ellipses come in the same shape.
Explanation:
I don't know your options, but there is one clear cause and effect relationship between the two:
As the agricultural methods advanced, people were more productive creating food. This means that not everyone had to engage in farming! And this allowed specialization for other jobs, just as smiths, which typically live in the cities.
The urban middle class is the correct answer :) I hope this help, have a lovely day.
