The original source of all sand is rocks.
There are various types of rocks and some rocks are broken down into pieces which leads to become sand. Moreover, sedimentary rocks are formed by the layers of deposition that takes place. The main difference between a sedimentary rock and sediment is that in case of sedimentary rocks the sediments are stuck together to form a hard rock like structure and sediments are normally loose in nature.
B. Ptolemy
C. Copernicus
D. Newton
2. Aristotle concluded that Earth was round because ____.
A. it always casts a curved shadow during a lunar eclipse
B. he sailed around the world
C. he calculated Earth’s circumference
D. it exhibited retrograde motion
3. The first early astronomer to propose a sun-centered solar system was ____.
A. Galileo
B. Newton
C. Copernicus
D. Brahe
The answers are:
A. Ptolemy
B. it always casts a curved shadow during a lunar eclipse
C. Copernicus
Ptolemy believed that the Earth was the center of the universe. He refined the model of Plato. He proposed that the planet has a small orbit called an epicycle and it moves along the a larger orbit that goes around the Earth.
Aristotle was convinced that the Earth was round because a lunar eclipse is caused by the shadow of the Earth. The shadow is always circular.
Copernicus was the first to propose the heliocentric model. He described the movements of the planets using astronomical theories which proposed the sun was at the center and not the Earth.
There are three answers here:
It connects the continents of North and South America.
It controls the Panama Canal.
It is an important trade route.
All three choices show the importance of Panama’s location important in the region. It is still vital to U.S. commerce.
Answer:
the answers are one two and three
Explanation:
polar projection
political
Winkel Tripel
Answer:
land use
Explanation: