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To show how water rises in different types of soil
Place about 15 cm of dissimilar types of soil in a series of lamp chimneys after tying a piece of cloth over the end of every chimney. Such soil samples as sand, loam, gravel (fine), clay, etc. may be used. Next stand the lamp chimneys in a pan which having about 3 cm of water. Observe the type of soil in which water increases highest because of capillarity. Clear plastic drinking straws can also be used for this experiment.
is there any human out of galaxy? Have any astronauts went out of galaxy?
Explain Accessory Organs which help in Digestion The gastrointestinal tract receives various secretions. Some are secreted from the glands in the lining membrane of the organs,
Describe the factors which decide the broad area of Scientific activity?
Experiments with man in space: We have already discussed the usefulness of space flights in Blocks 3&4. One is able to make astronomical observations from satellites; get met
Give Some examples of minerals used in everyday life? There are many minerals that are used in everyday life. We will discuss a few common examples of minerals and how they ar
Homo Habilis-The First Tool Makers: One of the most important developments in human evolution was the dramatic expansion in brain size which, according to the fossil data
which is longset cell in human body
State about the Lateritic soils Lateritic soils formed at high levels have a pale red colour, have high gravel content and are poor in all fertility constituents. Those forme
THEORIES OF ANTHROPOLOGY
Where friction is desirable and undesirable at the same time.
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