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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
Q.How is soil formed? Soil is formed by breaking down of rocks at or near the surface of the Earth through various physical, chemical, and biological processes by various factor
Why are nematodes agriculturally very important? Nematodes are the abundant soil microfauna. Being predatory and saprophytic in nature they cause a loss of vigour of the root
What are the Climatic factors of fertilizer requirements These include temperature, rainfall and its distribution, evaporation, length of day and growing season. A cool clima
Water Pollution Pollution of fresh water is one of the most serious environmental problems of the world as a whole. In our country most of the rivers and lakes are polluted
WHAT ARE THE ORGANS OF THE RESPIRATORY SYSTEM?
What is International Enzyme International Enzyme :- the amount of enzyme that catalyses the transformation of 1 mole of substrate into product in 1 minute.
why the water is important in all the people in the world
Freezing by Contact with a Cooled Liquid: Immersion Freezing In this method, the food is immersed in low-temperature brine to achieve fast temperature reduction through direct
Water-mill in Golden era: The water-mills were also invented in the classical period. But they came to be widely used only in the Middle Ages. The wind-mills and water-mills
Structure of the brain. Include different parts and their function.
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