Soft water is suitable for:

Which practice helps prevent water-borne diseases?

Tina is studying the disadvantages of metals in water. She knows that certain metals are toxic. Which of the following is a toxic metal that can contaminate water?

Temporary hardness of water is caused by:

Oliver is learning about waterborne diseases. He knows that typhoid is a waterborne disease. Which of the following is also a waterborne disease?

Ming is studying the disadvantages of natural substances in water. He knows that some substances can affect water quality. Which of the following is a disadvantage of phosphates in water?

Rachel is studying waterborne diseases. She knows that jaundice is a waterborne disease. What is the cause of jaundice?

Julia is learning about phosphates in water. She knows that phosphates from fertilizers and detergents can enter water bodies. What is a disadvantage of phosphates in water?

Ahmed is studying the properties of water. He knows that water is a polar molecule and can dissolve many substances. What property of water makes it a good solvent?

Which water source is generally the cleanest?