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Temperature variations in glacial regions
In glacial regions of the world or during forest fires the rocks are exposed to extreme temperatures. Since the conduction of heat is very slow, the temperatures at the surface and the interior of the rock are quite different thereby a kind of lateral stress is generated which may cause the peeling off of the external layers of the rock. This phenomenon is called as exfoliation and is accelerated by freezing of water trap ped inside the rock crevices and unloading i.e., the removal of overlying rocks or sediments causing the release of pressure.
To feel the 'spring' of air Secure a bicycle pump and place your thumb over the finish of the outlet tube. Next push the piston in forcibly and rapidly let go of it. What happe
CHEMICAL EFFECTS OF AIR Wash a small wad of steel wool in gasoline, benzene or carbon tetrachloride (car- bona) to delete any grease. Squeeze it out and then fluff it. As soon
Classification of Fires As explained also. We can say that the four main sources of fire risk in the science laboratory are: i) flammable substances, ii) compressed and
Demonstrating an eclipse of the moon Use a flash light or a lighted candle in a darkened room to show the sun. Hold an 8 cm rubber ball in one hand to show the earth. Hold a 2-
Ask question #Minimumwhat is that definition for cell theory? 100 words accepted#
ht are the examples oof a solution and its characteristics?
The industry dealing with hazardous materials should draw emergency disaster plan. Safety committees consisting of workers and management are required to review from time to tim
classification of animals
Evaporation in a mist of little drops is sometimes used to cool hot, dry air. Let Consider the Temperature in a spherical drop of liquid that is evaporating slowly enough that its
Technical innovations and Inventions: Medieval India witnessed considerable improvement and changes in the field of technology. While these changes were largely a result of
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