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To show that expired air contains carbon dioxide The two flasks are linked so that when you breathe by the T piece, all the air bubbles by the lime water in the flasks. One tub
which organs are protected by the skull
Explain the Hyperpnoea It is a term for an increase in the rate and depth of respiration. The cause of hyperpnoea may be voluntary or due to impulses from the hypothalamus.
how many element found in nature.
INTRODUCTION : In this activity, your Counsellor will perform some experiments illustrating the principles behind some of the disposal procedures. These principles are given below
Softening water with chemicals Try making suds with a half test tube of hard water and a few drops of soap solution. Next boil a same sample and again try to make suds by usin
how does our lungs work
How is the parathyroid hormone secretion regulated? It is simple. An increase in parathyroid hormone causes an increase in calcium absorption from the intestine and renal tubul
Procedure : A mock fire may be created by spilling a flammable liquid like alcohol, petrol etc. and lighting it at a safe place away from the equipments and working benches. Th
Q. Do you know of any activity which may be polluting this water source? Answer: The discharge of waste water from homes, industries, hospitals, etc. into the river pollutes thi
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