Why are radiations harmful?a.Radiations leads to skin cancerb.Radiations cause anemiac.Radiations changes body tissuesd.Radiations are not stable

Sure, let's analyze each option step by step to determine why radiations are harmful:

a. Radiations lead to skin cancer:

• Certain types of radiation, such as ultraviolet (UV) radiation from the sun, can damage the DNA in skin cells. This damage can lead to mutations, which may cause the cells to grow uncontrollably and form cancerous tumors. Therefore, this statement is true and is one reason why radiation can be harmful.

b. Radiations cause anemia:

• Radiation can damage the bone marrow, where blood cells are produced. This can lead to a decrease in the production of red blood cells, causing anemia. While this is a possible effect of radiation exposure, it is not the most common or primary reason why radiation is considered harmful.

c. Radiations change body tissues:

• Radiation can indeed alter body tissues by damaging the cells and their DNA. This can lead to various health issues, including cancer, tissue damage, and organ dysfunction. This statement is true and is a significant reason why radiation is harmful.

d. Radiations are not stable:

• This statement is somewhat misleading. Radiation itself is a form of energy emitted by unstable atoms as they decay. The instability of the atoms is what causes them to emit radiation, but the harmful effects of radiation are due to its interaction with biological tissues, not the instability of the radiation itself.

In summary, the primary reasons why radiation is harmful are:

• Radiations lead to skin cancer (a)
• Radiations change body tissues (c)

Both of these options accurately describe the harmful effects of radiation on the body.