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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.
How do you draw topographic maps?
Air expands when heated To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glas
State the harmul effects of Acidity of soil Acidity of soil may have harmful effects on plants due to the effect on enzymatic changes, reduced availability of nutrients like c
#2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD CELLS.
Factors decide the broad area of scientific activity
Dilute hydrochloric acid (HCl) oxidizes only the terminal -CH20H group with the formation of uronic acid. Glucose is thus oxidized to glucuronic acid.
WHAT ARE THE APPLICATIONS OF LP
does the thickness seed coat effect the groth of the seed???
i wants to know about kangaroo because my teacher give me an assignment so for that i wants to know everything about kangaroo
Question 1 It is the job of operations managers to convince the stakeholders that the investment in plant and equipment is going to enhance the value of the investments already he
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