Within a few minutes after inhaling marijuana smoke, a person’s heart
rate speeds up, the breathing passages relax and become enlarged, and
blood vessels in the eyes expand, making the eyes look bloodshot. The
heart rate—normally 70 to 80 beats per minute—may increase by 20 to 50
beats per minute or may even double in some cases. Taking other drugs
with marijuana can amplify this effect.
Answer: nicotine
Explanation:
Makers of e-cigarettes and other ENDS often claim the ingredients are safe. But the aerosols (mixtures of very small particles) that these products produce can contain addictive nicotine, flavorings, and a variety of other chemicals, some known to be toxic or to cause cancer. The levels of many of these substances appear to be lower than in traditional cigarettes, but the amounts of nicotine and other substances in these products can vary widely because they are not standardized. The long-term health effects of these devices aren't yet known.
A is the correct answer found ww.cdc.ov
Answer:
It has been easy to exercise
Explanation:
It has been easy to exercise because there has been lots of time to do so. Instead of playing games you can ride your bike, go for a run or play with your brother or sister.
A chemical change is occurring when the food is being broken down, while an irreversible change is happening when the proteins become denatured
