1. EXERCISE :
CHAPTER 5
Water and Solution

2. QUESTION 1
The process of evaporation is part of the
A. Water cycle B. Nitrogen cycle
C. Carbon cycle D. Oxygen cycle

3. QUESTION 2
A boy was stung by a bee. Which of the
following substances can be applied to
neutralize the sting ?
A. Water B. Toothpaste
C. Vinegar D. Dilute acid

4. QUESTION 3
Which of the following substances is used in
swimming pools to kill microorganisms ?
A. Alum B. Chlorine
D. Activated carbon
C. Blue pigment
powder

5. QUESTION 4
The coagulation process in the water
treatment system comes after
A. Sedimentation B. Filtration
C. Aeration D. Chlorination

6. QUESTION 5
Which of the following causes of water
pollution results in rapid growth of algae
leading to the reduction of oxygen level in the
water ?
A. Industrial waste B. Agriculture waste
C. Domestic waste D. Deforestation

7. THANK YOU FOR TRYING