17 Select the correct answers.
Which three reasons state why it’s important to practice giving a presentation in front of friends?
to get rid of nervousness and to build confidence
to ensure that the presentation fits into the time limit
to give your friends an opportunity to do something for you
to share what you’ve learned about a topic with your friends
to know which parts need improvement

Can you translate this

Why  do you think body composition focuses  on the  ratio  of  fatty tissue  to  other body tissue? why is  body composition not related  to  weight?

The answer would be true.

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases.