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Making a housing box for weather instruments
Some of your weather instruments must be uncovered to the weather. Between these are the wind vane, the wind speed indicator and the rain gauge. It is wise to protect metal parts of these instruments with either grease or paint. Aluminium paint works very well for this purpose
How did the Earth form and become spherical? The Earth's Shape : About five billion years ago the solar system was forming from gases and dust floating in space. Gravity, th
Explain the Respiratory Centre The respiratory centre consists of two main parts - inspiratory centre and the expiratory centre. The inspiratory centre is dominant. A reciproca
hardness of substances?
Beneficial Role of Soil Organisms The soil organisms play a significant role in the life cycles of plant and animals through decomposition, synthesis and transformation, in wh
Explain the Physiology of Lactation Lactogenesis is the onset of copious milk secretion around parturition, triggered by a fall in plasma progesterone levels. Although some col
The Asteroid Belt-Rubble of the Solar System: There is a gap of 547 million kilometers, between the orbits of Mars and Jupiter. In this gap are thousands of bodies made of ro
Ask question how many years that our earth survived?#Minimum 100 words accepted#
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
Heaping water up in a glass Place a drinking glass in a shallow pan or on a saucer. Rub the top edge of the glass with a dry cloth. Pour water into the glass unless it is full
Big Bang theory: The most important current theory for the origin of the universe is the Big Bang theory.According to this theory, the universe started with'a huge explosi
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