1. The purpose of this text is to inform us about the layers of the Earth and what they are composed of.
2. The mantle is a soft layer of molten rock called magma. In the upper parts, the rock is more rigid.
3. No. This statement is not true because the Earth is also made up of elements such as iron and nickel. The crust also contains life forms and water along with rocks.
Answer: Optic nerves.
Explanation:
Nerves are responsible for carrying electrical signals throughout the body and towards the brain. They are predominantly used for communication between body parts.
The retina is responsible for triggering these nerve impulses.
The pupil is a hole in the iris. Its main function is to allow light into the eye.
The iris controls the size of the pupil in order to maintain the correct amount of light entering the eye.
The correct answer is optic nerve.
Poor people. Serfs I believe their called but not 100% sure. But yea the rich 1 percent came from them. Most of the population was comprised of poor people unlike he middle class today.
