Cardiovascular system has to do with the heart, so anything to reduce the risk of that system (including the heart, bloodstream etc.) would be the answer for you. So just using Process of elimination:
A) Has to do with external exposure. <em>No</em><em />
B) Keeping hands clean <em>No</em><em />
C) Avoiding cigarette smoke <em>Yes</em>
D) Keeping your vaccinations up to date <em>No</em><em />
So your answer is C.
Answer:
they treat them and help them fight diseases and live longer
Answer: Two periods of 45 minutes and two 15 minute breaks.
Explanation:
Answer:
There are several reasons why entrepreneurs are willing to take a calculated risk and set up a business. Possible motives include: ... Owners keep the profit as a reward for risk-taking and enterprise. The satisfaction that comes from setting up a successful business and being independent.
Answer:
Good for him. I hope he doesn't get scammed.
Explanation: