write a letter to the person who is your ideal in between 150 to 200 words if u not know not answer
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Answer:
the different ways by which insoluble impurities can be removed from water are the following:
Filtration
Sedimentation and Decantation
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Floating:
In this process insoluble impurities are removed from water by passing the impure water through a filter paper. A circular piece of filter paper is taken and folded twice to make a cone and this is kept inside a funnel. A flask is kept below the funnel and the mixture is houred into the flask through the funnel. Sand is retained on the filter paper and clean water is obtained in the flask.
Sedimentation and Decantation:
The mixture of insoluble impurities for example, (mud ) and water is allowed to stand undisturbed in a beakker.
After some time the mud settles down at the bottom of the container as sediments. This process is called sedimentation.
Clean water can then be poured out into a seperate container without disturbing the sediments. This process is called decantation.
Answer:
Veeru and Karim were young Keralites. The next week their school was going to organise a camp near a forest in Ponmuddy. The following week they joined the camp. One day they went out together. They thought of going inside the forest to explore it. Soon they lost their way. The sun had set. They were walking along the Periyar river. They heard a loud noise. They stood still and listened to it. They heard the sound of an animal coming towards them. It was the sound of a big elephant. He was just fifty metres away from them. The elephant smelled them too. He saw them standing quietly behind an oak tree. He raised his long trunk up in the air and trumpted loudly. The boys didn’t move. Veeru was a little frightened, but Karim was not. Slowly the elephant started coming nearer and nearer. Now he was only ten metres away. “Let’s do something,” said Karim. “Do it, before he attacks us,” said Veeru.
Karim pulled out a balloon from his pocket. He put it in his mouth and started blowing into the balloon. At last, it was blown to the size of a small bag. Karim hit the full blown balloon hard with his hand. “Bang-Bang!” The elephant stopped and trumpeted angrily. He was confused.The elephant turned away and disappeared into the forest. The boys ran and ran till they reached safe at the camp