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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.
Cognitions Mr. X sees himself as very capable to meet the demands of his environment (LSE=41) and has confidence in his abilities to deal with his problems (TRT=39). He sometim
Procedure: Take any appliance1 equipment in the laboratory e-g., the oven, electric heater, sodium lamp, immersion rod, the vacuum pump, autoclave, heating mantle, refrigerator, i
Classification of Fires As explained also. We can say that the four main sources of fire risk in the science laboratory are: i) flammable substances, ii) compressed and
Question 1 Analyse the present state of environment system by performing Economic analysis Question 2 Discuss the reasons for the market failure in Environmental Eco
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
a ray of light falls on a transparent slab of refractive index u.if the reflected and refracted rays are mutually perpendicular to each other,find the angle of incidence.
What is extinction? When did it happen? What are some human activities that lead into extinction
what is heart attack comes
Compute for 3 H the mean energy per nuclear disintegration, Δ. The SI unit for Δ is kg Gy Bq -1 s -1 identical with J Bq -1 S -1 . The effective half-life for tritium in body w
Fortin type barometer A simple Fortin type barometer can be improvised for the junior laboratory. The glass tube is held vertically with single end in the reservoir by two curt
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