Question Text
Question 1 :
Choose the correct option.<br>The process by which water vapour changes to water is called ___________.
Question 2 :
Choose the correct option.<br>The process of adding chlorine in water to kill germs is called ___________.
Question 3 :
Choose the correct option.<br>___________ is used to remove substances that dissolve in water.
Question 6 :
Choose the correct option.<br>The process by which water changes to water vapour is called __________.
Question 8 :
Choose the correct option.<br>Impurities such as sugar and salt are called ___________ impurities.
Question 9 :
Choose the correct option.<br>Plants get ___________ with the help of bacteria in the soil.
Question 10 :
Choose the correct option.<br>The process in which the insoluble impurities in a liquid are allowed to settle down at the bottom of a container is called ____________.
Question 11 :
Choose the correct option.<br>We can remove the soluble impurities in water by __________.
Question 13 :
Choose the correct option.<br>The water vapour in air rises and condenses to form ___________.
Question 15 :
Choose the correct option.<br>About 70% of our body is made up of ___________.
Question 17 :
Choose the correct option.<br>The process of removing the clear water after the sediments settle down is called ____________.
