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Moisture comes from other plants
Secure a flower pot which has some bean or pea seedlings that are 10 or 15 cm in height. Cover the top of the pot with cellophane or sheet rubber, pinning it closely approximately the stems of the plants so no soil is uncovered. Invert a clean, dry glass jar over the plants and view after an hour.
Darwin and Natural Selection: The English naturalist Charles Darwin (1809-1882) explained how biological evolution took place, in his remarkable "The Origin of Species" in
Describe the factors which decide the broad area of scientific activity?
To study a hailstone When it hails, collect some of the hailstones. Cut them in half and view how the ice of the hailstone has been built up in layers. If you live in a region
describe the differences between GDP and GDP per capita
Depletion of Ozone Layer: Since the last decade or so, there is concern about the possible reduction in the ozone layer surrounding the earth. Now the question arises, what h
advanced in live zoology
In Pursuit of Starlight: The easiest method of studying light from a cosmic object is to collect it through a telescope and record it on a photographic plate. photographic plat
A balance barometer This device depends on the fact that dry air is heavier than moist air at the similar temperature. Two equal cylinders (tin cans would do) are mounted, o
Archaeological Evidence: The study of human antiquities, especially of prehistoric period is known as archaeology. The biological and cultural evolution of man proceeded side
Define relationship of Proteins with Physiology These form building block through their 'amino acids'. They pass through blood stream and go to liver, where they are broken dow
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