Answer: Cancer
Explanation:
Cancer is the uncontrolled growth of some cells in the body and there are so many types of cancer such as long cancer, skin cancer, breast cancer etc
Air pollution such as smoke, chemical and dust in the air can result into lung cancer. Air pollution can result into changes in one's DNA which can cause lung cancer.
Astigmatism is a visual defect that causes blurred vision and it can lead to headaches and eye discomfort.
Acrophobia is an extreme fear of heights. Someone who has a fear of height is said to be acrophobic.
A cold is common viral infection of the throat and nose. A cold is usually harmless.
