The correct answer is 3 billion years old as per the banded iron sample obtained from Canada
Answer – False
The most common type of skin cancer is basal
cell carcinoma. Basal cell carcinoma <span>produces an open ulcer and
can be easily treated with radiation therapy or surgical removal.
</span>Malignant melanoma on the other hand, is
known to be<span> the most
aggressive and life-threatening of all types of skin cancer.</span>
The first answer would be a and the second would also be a
Explanation:
The ribs are a set of twelve bones which form the protective 'cage' of the thorax. They articulate with the vertebral column posteriorly, and terminate anteriorly as cartilage (known as costal cartilage). As part of the bony thorax, the ribs protect the internal thoracic organs.