Pure water is

• White,good smell,sweet taste

• Colourless, sweet smell, no taste

• Colourless, smellless, tasteless

• White, smelly, salty

River water is polluted due to

• Boating

• Throwing waste materials

• Swimming

• Fishing

Water animals and plants sometimes do not live because the water becomes polluted due to

• Waste from factories

• Waste from the kitchen

• Rain water

• More boating

Which of the following is soluble in water?

• Marble

• Sand

• Plastic

• Sugar

Which of the following is not soluble in water?

• Honey

• Chalk Powder

• Salt

• Sugar

Water is made fit for drinking by

• Boiling

• Filtering

• Cooling

• Using Alum

Rivers which flows into the Bay of Bengal are

• Ganga

• Mahanadi

• Krishna

• Narmada

Which of the following things when put into water changes the colour of water?

• Milk

• Haldi

• Salt

• Ink

River when passes through villages, towns and cities becomes polluted due to

• Human activities

• Wastes from factories

• Smoke from factories

• Smoke from vehicles

Drinking impure water can cause diseases like

• Cough and cold

• Heart attack

• Diarrohea

• Headache