<u>Answer:</u>
Ptolemy accounted for 'retrograde motion' in his model of the solar system by introducing smaller circles named 'epicycles'.
<u>Explanation:</u>
- According to Ptolemy, the Sun and the other planets in the Solar system orbited around the Earth.
- The Greeks were convinced that Ptolemy's earlier model did not provide for backward or the retrograde motion.
- Ptolemy thought over it for a while and theorized the possibility of 'epicycles'.
- According to Ptolemy, the planets that orbited Earth also orbited another smaller point.
- The smaller orbits followed by the planets while in motion around the Earth in a larger orbit were introduced by Ptolemy as 'epicycles'.
- Until Kepler proposed his models of the functioning of the Solar system, Ptolemy's models were considered the most relevant.
B. North Sea, it is well known for its fierceness. Throughout the year there are strong storms that hit the coasts of the countries that surround it.This huge raft of seawater of about 750,000 square kilometers, an "arm of the Atlantic" we could say, receives marine currents from the other side of the world and is stirred up affecting the British Isles, Norway, Denmark, Germany, Holland, Belgium and France with big tides and scary storms.
Answer:that the naming of natural regions has limitations
Explanation:
Answer:
Anyone with access to wireless internet or advanced radio technology
Explanation:
Anyone with access to wireless internet or advanced radio technology have the ability to access GPS systems locally, nationally and world wide.
GPS is the short form of Global Positioning Systems. It is made up of a system of satellites which are used to locate positions on earth. They work on principle of triangulation.
- Most of these system of satellites are accessible over a wireless internet. For example, most of our mobile phone have this ability.
- Also, over advanced radio technology we can access these gps systems. This is used mostly in the military for more secured access.
Layer G must be older than layer F, according to the law of superposition. So the answer is Paleozoic era, I believe.
