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The Sun is the most important star from our point of view. It is the only star close enough to be studied in considerable detail. The grandeur of the Sun is partly because of its size. Its diameter is almost 110 times that of the Earth. We can best visualise the volume of the Sun if we realise that more than a million earths can be dropped into the space it occupies. As we have said above, the mass of the Sun is about 2 X 1033 grams, which makes it more than 300,000 times the mass of the Earth. The average density of the Sun, i.e.. its mass per unit volume, is about 1.4 g/cm3.
Although the Sun appears to be unchanging, it rotates about its axis once every 25 days. From time to time dark patches appear on the surface of the Sun, usually in pairsor in groups. These dark patches are called sunspots. Their movement is an indication of the Sun's rotation. This fact was recognised for the first tiine by Galileo. Actually, a sunspatis a regiim cn the surface of the S& that consists of gases almkt 10000c cooler than those surrounding the area. The number of sunspots increases and decreases in a cyclc every 11 years. In the long term, there are periods of low number of sunspots and High'number of sunspots.
Explain Bile Salts - Constituents of Bile The liver is the site for synthesis of bile salts. The amino acid glycine is synthesized in the body. Taurine is derived from the sulp
Poisons : It is essential that all dangerous substances, such as cyanides, are always kept under strict control. Steps to ensure such control are as follows: i) All substances
What is rancidity This results from the formation of aldehyde due to the oxidation of unsaturated glycerides or by the liberation of fatty acids due to hydrolysis. In
Does the frequencies of the colors of the light increase from red to violet?
What minerals attract lightning? Ans) Big structures and things that are metal attract lightning, also trees do. In fact, anything that is metallic having mineral may seem
Look up the medications in your drug text, your nursing drug book and on the Internet. At times you may need to contact a pharmacy to get answers to your questions. You need to
Emergence of chemistery: Chemistry The level of chemical knowledge and practices in the new ordered society is reflected in the pottery, iron tools and glass objects found at
Linh has been brought by ambulance to the Emergency Department of the local metropolitan hospital where you are working, following a drug overdose of thirty Paracetamol tablets whi
what are 5 different types of asexual reproduction?
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