"Sun-centered," or "heliocentric" Copernicus thought that the planets orbited the Sun, and that the Moon orbited Earth. The Sun, in the center of the universe, did not move, nor did the stars. ... Also, both Copernicus and Ptolemy thought the orbits of the planets were circular, but we now know they are elliptical.
Answer:
The geography plays an important role, the mountains first of all
Explanation:
Greece occupies a small area, a mountainous peninsula. It is formed by small plains and river valleys surrounded by mountains. For a certain period, these communities remained attached to their independence and were only really willing to fight each other to gain advantages, which caused that each one formed its own culture, since, before the limited environment, it was difficult to communicate with each other.
Bands of soft rocks like clay and sand are very weak in which they can be eroded very quickly. Since cliff and coastline doesn't erode at the the same pace, an inlet of the sea to where the land curves inward forming a bay. Once soft rocks are eroded inward, the hard rocks are able to stick to the sea to form a headland
Explanation:
Methods of Desalination
At least three principle methods of desalination exist: thermal, electrical, and pressure. The oldest method, thermal distillation, has been around for thousands of years. In thermal distillation, the water is boiled and then the steam is collected, leaving the salt behind. However, the vaporization phase change requires significant amounts of energy. More modern methods of distillation make use of various techniques such as low-pressure vessels to reduce the boiling temperature of the water and thus reduce the amount of energy required to desalinate.
A second major type of desalination utilizes electric current to separate the water and salt. Typically, electric current will be used to drive ions across a selectively permeable membrane, carrying the dissociated salt ions with it. A key characteristic of this method is that the energy requirement depends on how much salt is initially present in the water. Consequently, it is suitable for water with initial salt concentrations but too energy intensive for sea water. [3]
A third principle method of desalination is reverse osmosis, in which pressure is used to drive water through a selectively permeable membrane, leaving the salt behind. [3] Similarly to electrically-driven separation, the amount of energy required for desalination depends on the initial salt content of the water. Again, this renders reverse osmosis unsuitable for sea water purification.
Answer:
The Great Dividing Range enhances rainfall near the coast, but contributes to a progressive decline in rainfall from east to west across the state.
Explanation: