Answer:
Cadmium can be highly toxic and exposure to this can cause cancer, this targets the body's gastrointestinal, cardiovascular, neurological, and respiratory systems. This is also known to pile up in the kidneys and can even lead to kidney disease.
Explanation:
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Look forward and never hold your breath
Likely the chronological age, mainly because it would explain the differences in puberty stages between the two boys, which is an example of physical maturation.
Answer:
Explanation:
Some barriers or roadblocks a person might have against exercising are that they don't have time, they aren't motivated or interested, it's too hot or cold or rainy, or that it will cost too much. These can sometimes be legitimate concerns, but there is always a way to build your exercise program around them. If you don't want to spend money at the gym, you can do calisthenics in your own home. If you aren't interested in a certain type of exercise, you can try new things until you find one you like.
Here you go! The first part is the most important part :)
