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Q.What is the greenhouse effect?
Some gases like carbon dioxide, methane, nitrous oxide prevent the escape of heat from the Earth's surface by trapping it. This increases the average temperature of the Earth. This is called the green house effect. An increase in the content of such gases would lead to a situation of global warming.
What simple machine could you use to lift a heavy rock out of the ground? How would use the machine
A compressed air pop-gun Use a straight piece of glass or plastic tubing of 1 or 2 cm in diameter and 15 or 20 cm in length. Make a piston by twisting some string on a pencil t
Nuclear Fission: Splitting the Atom You know that atoms are made up of a nucleus and electrons moving around the nucleus, and the nucleus is made up of protons and neutron
Test for studying suitable chemical treatment for changing the chemical nature of iodine Reactivity of iodine is tested with 1. Water and, 2. Sodium thiosulphate soluti
Explain Increase in Sound Wave Pressure through Middle Ear There are certain factors which contribute to an approximately eighty-fold increase in sound wave pressure through mi
what are some easy examples of a solstice
#qDescribe the factors which decide the broad area of Scientific activityuestion..
State the ratio of rainfall and evaporation The ratio of rainfall and evaporation is called as P/E ratio, where P stands for precipitation and E for evaporation. If P/E ratio
Explain the Stagnant or Ischemic Hypoxia It is a hypoxia resulting from slow peripheral circulation (such as follows congestive cardiac failure). In this, the blood flow to the
Explain Iinmunoglobulin E - classification of antibodies Protects against organisms which escaped IgA, major deference against helminthes, mediates allergy. On coming in contac
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