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How many plates does the Earth's crust have?

How many plates does the Earth's crust have? The relatively solid earth's crust and a part of the layer that lies below it-is divided into seven large and more than smaller plates. These plates float over the hot , viscous layer, which is constantly in motion-like boiling soup. These flushes of heat in the Earth's interior are known as 'convection cells' at places where the convection currents push the rocks upwards , the crust often breaks and gives rise to a new crust. For example, the mid-ocean ridges in the Atlantic and Pacific oceans.           If you like this blog please comment down below                                                                                                       ...
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What happened 550 millions years ago?

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What happened 550 millions years ago?                                                    About 550 millions ago, a lot of changes took places on the Earth. At that time probably the whole of the Earth warmed up. As a result, a lot of ice melted and the sea level rose. It is assumed that the composition of sea water became calciferous, turning mollusks that lived earlier in the sea into animals with hard protective calcium shells or calcium skeletons. From that animals started turning into fossils after deaths. The first such animals were the trilobites, and these water later followed by the mussels and ammonites, which are related to the octopus. Guys if you like this blog please comment down below  Read my previous blog here: https://ourearthintheuniverse1.blogspot.com/2020/05/how-earthquakes-occurs.html
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Why are some planets so big?

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Why are some planets so big?             The largest planets of solar system are the  planets Jupiter and Saturn. Both planets have distinct bands around them with stripes. Saturn  can be recognized easily by its rings. Uranus , uniquely tilted sideways, and the blue Neptune , the coldest of the outer planes, are also much Larger then the inner planets. The outer planets are so big because they are comprised mainly of gases such as helium and hydrogen. These planets have a solid core, which is surrounded by liquid or frozen gas. This reason why they are also known as "gas giants" . Guys if you like this blog comment down below Read my previous blog here: https://ourearthintheuniverse1.blogspot.com/2020/05/why-does-moon-change-its-shape.html
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