Filtration, coagulation, settling basins and aeration are some examples of water treatment and is denoted as option A.
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What is Filtration?</h3>
This is a technique which is used to separate solids from a liquid or gas substance.
This alongside others mentioned above are used in treating water to remove contaminants and make it safe for drinking and other uses.
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The thing to see what to put the food in
I hope this information helps. You can google it too this is from Harvard. Edu page.
Answer: c. treadmill and bicycle ergometer.
Explanation:
A stress test can be defined as a kind of exercise which is performed to record how the heart works during the physical activity. As the exercise causes the pumping of heart harder and faster. It is a test which gives information about the flow of blood from the heart, blood pressure and breathing are continuously monitored.
A stress test is usually performed by walking on a treadmill or riding on a stationary bike or bicycle ergometer. As continuous walking and riding is likely to increase the functional rate of heart.