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How the lungs work
Cut the bottom off a large bottle. Fit a cork to the neck with a Y tube in it. On every of the lower limbs of the Y tie a rubber balloon or a number of small bladder.
Tie a sheet of brown paper or sheet rubber round the bottom of the jar, with a piece of String knotted by a hole and sealed with wax. Pulling this string lowers the diaphragm and air enters the neck of the Y piece causing the balloons to dilate.
Pressing the diaphragm upwards has the opposite effect.
Some Physical Features of the Atmosphere: i) The atmosphere is a mixture of gases. It is made up of 78.08% nitrogen; 21% oxygen by volume. There is only 0.03% of carbon dioxi
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Define Procedure for Estimation of Iron in the Solution? Carry out the experiment following the steps enumerated herewith: 1. Weigh 702 mg of reagent grade ferrous ammonium
Important physico-chemical properties of biotin include the following: a) It forms colourless, needle shaped crystals. b) The vitamin is sparingly soluble in cold water
Define Precautions for Estimation of Iron in the Solution? 1. Washing of glassware for iron estimation is important. Insufficient washing for iron removal may cause fluctuation
Heart Massage for Restoring Circulation : In cases of breathing failure, you should check that the casualty's heart is still beating. This is especially important with victims of
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researched method in socieal science with sample sarvay
What is a chemical compound? By definition, a compound is a substance in which two or more different elements have combined. There are millions of examples of compounds all aro
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