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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
Observing sun spots Use the telescope that you made in a last experiment. Set it up so that it points directly at the sun and focus it so that a clear and bright image of the s
what is Amoeba shaped like
explain the factors that led to the decline of science in europe during iron agen..
Explain Intermittent positive pressure lung inflation When medulla is affected, the cough reflex may be lost. To prevent secretions entering the lungs, a tube is inserted into
What is Soil Taxonomy The concept of soils as natural bodies was first developed by Russian soil scientist V.V Dokuchaev and his associates when they noted the relationship p a
Explain Nasal secretions and Cerumen Nasal secretions: These can destroy harmful organisms due to lysosomal activities. Cerumen (wax of ear): It traps and kills the bacteria
How to prepare hydrogen Hydrogen can be prepared from a dilute acid, like as hydrochloric or sulphuric, when it is chemically reacted with a metal like as zinc. The acid may be
Define Age Related Changes in Blood Blood: Here the haemopoiesis (the formation of blood cells) slows down. Fatty marrows replace the heamopoietic (red) marrow. Thus, the proli
Q. What are the different states in which water is found during the water cycle? During the water cycle, water is found in solid state (snow, ice, etc.), liquid state (ground wa
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