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Night Sky:
When you look up at the sky on a clear night, what do you-see? Most of it is dotted with twinkling stars. You may see the moon or Venus as a bright point or Mars as a reddish one. Venus is sometimes seen in the evening just after sunset and, at other times, in the morning before sunrise. Except for the planets, all sthcr points of light are stars. From our planet Earth, on a really clear, dark night, we aan see .about 6,000 stars. Stars and Constellations The night sky is interesting. The stars seem to fall into certain patterns. You must have seen the Saptarishi, also known as the Big Dipper or the Plough. It is a part of a bigger group of stars called the Great Bear or the Ursa Major which is seen in the northern sky. We can see many different star patterns like the Hunters, the Lion, the Dog, the Balance etc. These pictures are not there really in the sky. Our imagination has put them there. The early star gazers and the ancient astronomers traced out these star patterms and named them after gods and heroes, objccts or creatures which these groups of sqrs resembled in their imagination.
Diagrammatically explain about the complementary nature of atomic absorption spectrophotometer and atomic emission spectrometry.n..
Metamorphic rocks Igneous and sedimentary rocks that have been altered from their previous condition through the combined action of heat and pressure below Earth's surface are
Objectives After doing this exercise you should be able to: 1. Identify the contents of the gas cylinder by observing the colour code, 2. State the nature of the gas pr
what is nutrition?
Resuscitation - An Explanation A living person needs the support of "ABC" mentioned below: Airway - clear airway Breathing - normal breathing Circulation - proper bl
Reactions of Carboxylic Group Salt formation: In alkaline medium, XOOH group reacts with metal hydroxide to form amino acid salts.
Structure of Atoms Elements are pure substances. Elements are composed of a single kind of atom, as opposed to compounds which contain two or more kinds of atoms (see lesson 5).
1. If the landfill had a compacted density of 600 Kg/m3 a refuse depth of 9 m (29.5 ft), a moisture content of 20% by volume, and a 1-m (3.25-ft)-thick clay cover with a 2% slope
what are the kinds of animals?
Studying broken rocks with a magnifying glass Study freshly broken rocks with a magnifying glass and try to find crystals of dissimilar minerals. The crystals of dissimilar mi
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