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A self-starting siphon
Secure a piece of glass or plastic tube about 2.5 cm in diameter and 8 to 10 cm in length. Fit single end with a one-hole stopper, carrying a short length of glass tube that extends about a centimetre under the stopper on the inner side. Fit the other end of the large tube with a two-hole stopper. By one of the holes in the two-hole stopper place a jet tube which extends up by the larger tube and into the opening of the glass tube in the one-hole stopper. Connect a long rubber tube to the glass tube in the single-hole stopper
Determine about the Bicarbonates Bicarbonates are highly soluble, Ca(HCO3)2 goes into solution. Further, stronger acids, like nitric a nd sulphuric acid present in soils thro
why there is 28 day in february month
Palaeontological Evidence: Palaeontology is a branch of earth sciences, which is essentially a study of plant and animal life in the past geological periods, millions of ye
Question : a) Define i) relative humidity. b) Why is it generally cloudy in the vicinity of a low pressure area and sunny in the vicinity of high pressure? c) What are th
Ground depressions in areas of Karst topography are called: Sinkholes
EXTINGUISHING A FIRE : The techniques and equipment which you will learn about in this section relate to the standard kinds of fire fighting equipment found in buildings open to t
Life in Atmosphere: Just like the earth, the atmosphere also sustains life. Various types of insects and mites, birds, bats and other organisms are some of the forms tha
Few sentences about fetus in human being? Definition, development, & important notes?
Water extinguishers : Direct the jet at the base of the flame and keep it moving across the fire. Attack a fire which is spreading vertically at its lowest point and follow th
A tropical storm will be declared a hurricane when: There is evidence of eye formation and sustained wind speeds of 74 mph
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