I'm pretty positive it's lung cancer
The human body is mostly made up of water (H2O), and there is one oxygen atom in each molecule of water. Note that, although each water molecule also contains two hydrogen atoms, the atomic mass of hydrogen (about 1) is much smaller than the atomic mass of oxygen (about 16). Because of this, hydrogen contributes less to human body mass than oxygen.
It can be either, based on how they feel about how skilled they are. But most of the time it is, a) True.
Answer:
Heart disease
Cancer
Unintentional injuries
Chronic lower respiratory disease
Stroke and cerebrovascular diseases
Explanation:
I did an assignment on it
