Question

1. how does the ion exchange system affect water? (a) it removes any ion with a positive charge and exchanges it with an ion that has no charge. (b) it takes out dangerous metals and fertilizer by replacing some harmful ions with better ones. (c) it breaks down toxic organic material by getting rid of all of the ions from water. (d) it leaves deposits on faucets and pipes and that washes out the lead and arsenic from the water

Explanation:

Ion - exchange systems work by replacing harmful ions in water with more beneficial ones. They are often used to remove dangerous metals and other contaminants. Option A is incorrect as ions are exchanged with other ions, not uncharged particles. Option C is wrong because ion - exchange doesn't break down toxic organic material by removing all ions from water. Option D is incorrect as ion - exchange systems don't leave deposits on faucets and pipes to wash out lead and arsenic; they directly remove the harmful ions through exchange.

Answer:

B. It takes out dangerous metals and fertilizer by replacing some harmful ions with better ones.