Carbon makes four electrons available to form covalent chemical bonds, allowing carbon atoms to form multiple stable bonds with other small atoms, including hydrogen, oxygen, and nitrogen. This allows carbon atoms to form a tremendous variety of very large and complex molecules.
D) It can only be used in areas with specific kinds of rivers.
When cell division is not regulated it can cause a malignant rumour called cancer , radiation is used in chemotherapy to kill the cancer, tumoutsd can also be benign
