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Nonionising Radiations : As stated earlier the radiation hazards are not limited to ionising radiations from radioactive materials. There are a number of other radiation sources in the laboratories which are potentially hazardous.
Another way to show that air expands when heated Snap a toy balloon over the neck of a small bottle and place the bottle in a pan of warm water.
Q. List any three human activities which would lead to an increase in the carbon dioxide content of air (i) Burning of fuels in various processes like heating, cooking, transpor
Define Gynaecological Cancers Gynaecological cancers include cancers of the cervix, breast, endometrium, ovary, vagina, vulva and rarely, the fallopian tube. Cervical cancer is
Explain the Factors That Affect the Reabsorption Process There are also two major factors that affect the reabsorption process. These include: 1) Concentration of small m
A siphon fountain Fit a glass jar (a flask from a used electric bulb) with hole rubber stopper. By one hole place a jet tube which will extend about half way to the top of the
What are some properties that the element contain.
QUESTION (A) Define Psychology (B) Why is psychology considered a science? (C) (i) Clinical and Counselling psychology sound similar. How do they differ? (ii) Discuss a
REQUIREMENTS 1. Stock register of a science laboratory 2. Loose paper sheets 3. Pen 4. Pencil 5. Rubber
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
Explain the Propulsive Movement The basic propulsive movement of the gastrointestinal tract is peristalsis. Peristalsis is the movement by which the gastrointestinal canal, hav
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