<span>It is true that walking to work is one way of helping improve air quality. If you are walking, or riding a bicycle to your work, you are obviously not using a car or a bus which use fuel which pollutes air. So, if more people would do this, they would help improve their living conditions and the air we breathe, because each day, our air becomes more and more polluted. </span>
The cells in the heart need a constant supply of nutrients / oxygen and to get rid of their waste products ans that why it needs its own special circulatory system.
Answer: D
Quackery
Explanation:Quackery is a Deliberate misrepresentation of the ability of a medicine, a machine, a substance or a person to prevent or treat disease. It is may claims that you can alleviate something. It can also mean practising (Medicine) something when you have not being permitted by law or the governing body of that association to practice.
But from the question, they know that the health product is not effective yet they are selling to make profit. That's Quackery from the first definition given because their action was deliberate.
Answer: when you have sex then you would probably be expecting a baby because that is how we are created it is our reproductive system...
Explanation:
The answer to the blank in the above statement is 30%.
