Answer:
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Of the more than 7,000 chemicals in tobacco smoke, at least 250 are known to be harmful, including hydrogen cyanide, carbon monoxide, and ammonia (1, 2, 5). Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer. These cancer-causing chemicals include the following (1, 2, 5)
Explanation:
Cardiovascular fitness is best described as B. the ability of the body
to transport oxygenated blood efficiently. Cardiovascular fitness is
improved by regular aerobic exercises and help to strengthen the cardiac
muscles, making the heart more efficient in pumping blood through the
body. Moreover, cardiac efficiency decreases the resting heart rate of a
person as their heart is more effective in transporting blood with each
contraction.
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2 4 and 5 i would say maybe A
A is the answer, Without an Official Government seal, the Certificate is invalid, and not a usable form of identification. :) hope I helped!!
