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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.
Preparation of Report for an Imaginary Accident In case of serious accidents, accident report has to be sent to the Head of the Institution who may use it for official purposes
Define the Functions of Cerebrospinal Fluid The CSF has many functions. These include the following: 1) It provides the optimum condition for a meaningful signal/stimulus. T
Explain the Submucous Layer This layer consists of loose areolar connective tissue. There are lymph vessels, plexuses of blood vessels and nerves. The nerve plexus is meissner'
What is permanent wilting percentage As plants absorb water from a soil, they lose most of it through evaporation at the leaf surface. Some water is also lost by evaporation d
Atomic theory in antiquity: The oldest of Indian philosophical systems was Samkhya. The system envisaged that everything except consciousness evolved out of primaeval matter.
in which direction should it face/ explain why/
Define General Hormones General hormones, on the other hand, are emptied into the blood by specific endocrine glands and then flow throughout the entire circulation to affect c
Explain the Nerve Roots Each nerve is attached to the medulla spinalis by two roots, an anterior or ventral, and a posterior or dorsal. The anterior nerve root consists of moto
my research topic is based on water consumption efficiency. I need definitions of the following keywords; efficiency consumption, water use behavior / pattern; water end uses, wat
Write an essay to answer the following question: How can social scientists explain human behaviour scientifically?Discuss the merits and limitations of the applications of the sci
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