CSGR

The Bishnois of Rajastan have been famous for concern for trees,birds,and animals.In 1731,Abhay Singh, the king of jodhpur, wanted larger quantities of wood for burning bricks to build his new palace.He sent his minister Giridhardas,with wood cutters to cut the trees in the forest near the Bishnoi villages.                Amritadevi,a mother of three,wanted to save trees.She hugged a tree and begged Giridhardas and the cutters to stop the operation.Her daughters too followed example.Giridhardas ordered the men to proceed and they cut down the trees and the women.The news spread and more villagers came to rescue of the trees.But the cutting continued and by nightfall,363 people had given their lives in the cause of the forest.             When the king heard the news,he was over come with remorse.he then banned felling of trees in the Bishnoi forests forever.          ...

Mercury is a crystal liquid at room temperature,except mercury all metals are solid at room temperature. Mercury has high co-efficient of expansion so it notice small change in temperature so mercury used in thermometer.

Nitrogen gas is used for packing food stuffs.nitrogen is a inert gas it inhibiting unwanted chemical reactions such as food spoil and oxidation,it maintain the integrity of the product.

BECAUSE PRESSURE COOKER IS CLOSED SYSTEM SO THERE IS NO HEAT ESCAPE FROM THE SYSTEM,THIS WILL INCREASE THE PRESSURE THEN THE COOKING SPEED ALSO INCREASES.      THE RELATION   PV=NRT SAYING THAT PRESSURE IS DIRECTLY PROPORTIONAL TO TEMPERATURE.

AIR IS COMBINATION OF GASES WHICH IS PRESENT IN THE ATMOSPHERE WHERE AS WIND IS MOVEMENT OF AIR FROM HIGH PRESSURE AREA TO LOW PRESSURE AREA.

because after flaming the match box the air present surrounding to the flame will became less dense,lighter density materials always move upward.

Because when you place cold bottle in atmosphere the temperature is hih in atmosphere compared to in side the bottle.there will form temperature gradient,so that in order to obtain the equilibrium temperature he air surrounding to the bottle get high vapor pressure and high vapor density and it will adhere to the surface of the bottle.