<span>The effects of tobacco smoke on the respiratory system are irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages permanent damage to the air sacs of the lungs.</span>
Answer:
9
Explanation:
any number squared is multiplied by itself. even if the number is negative, you would be multiplying two negatives which is always a positive number. therefore, negative 3 squared, or negative 3 times negative 3, is a positive 9
can you be more spacific please there are many answers to that question.
people must was there hands after every break and after handing food every product cut needs its own cutting board example meat cant be cut on the same board as potatos.
Answer:
I will tell them that they should pay attention to eating foods rich in vitamins and pay attention to protein intake, especially fish, and interest in sports, and the simplest thing is walking.