Question 11 MarkOn adding sand in the water the colour of the water does not change.AnswertrueView full question & answer→
Question 51 MarkRivers do not have same amount of water throughout the year.AnswertrueView full question & answer→
Question 61 MarkThere are a few fishes in the river near factories and cities.AnswertrueView full question & answer→
Question 71 MarkWater of the river near the factories is very clean.AnswerfalseView full question & answer→
Question 81 MarkAt the place where the river begins the water is colourless.AnswerfalseView full question & answer→
Question 101 MarkThe water of the river is drinkable at the place where it begins.AnswertrueView full question & answer→