Write Short notes on the following.
1.. Milky way
2.. Nebula
3.. Gas Giants
4.. Blue Planet
Answers
Answer:
1. The Milky Way is the Galaxy in which we live. It is a spiral shaped galaxy that contains several hundred billion stars, including our Sun. It is about 100,000 light-years across and about 10,000 light-years thick.
2. A nebula is an interstellar cloud of dust, hydrogen, helium, and other gases. Nebulae (more than one nebula) are often star-forming regions, where gas, dust, and other materials 'clump' together to form larger masses, which attract further matter, and eventually will become massive enough to form stars.
3. A gas giant is a giant planet composed mainly of hydrogen and helium. Gas giants are sometimes known as failed stars because they contain the same basic elements as a star. ... The outermost portion of their hydrogen atmosphere is characterized by many layers of visible clouds that are mostly composed of water and ammonia.
4. Planet Earth has been called the "Blue Planet" due to the abundant water on its surface. Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water. However, liquid water is a rare commodity in our solar system.
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Answer:
milky way - The Milky Way is the galaxy that contains our Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye
nebula - A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Originally, the term was used to describe any diffused astronomical object, including galaxies beyond the Milky Way.
gas Giants - gas giant is a giant planet composed mainly of hydrogen and helium.[1] Gas giants are sometimes known as failed stars because they contain the same basic elements as a star. Jupiter and Saturn are the gas giants of the Solar System.
blue planet - Sir David Attenborough narrates this critically acclaimed series that dives deep into the marine environment of Planet Earth. Although two-thirds of the world's surface is covered with water, scientists know less about the oceans than they do about the surface of the moon.
Explanation:
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