1. Speaking&Writing3 s1180122 Shota Watanabe

2. Unit Rem is a unit of radiation dose. In Hiroshima and Nagasaki, comes back to Earth's surface is carried over by a nuclear explosion. As a result, people are subject to damage the surface.

3. Effect Human dies receives a dose of 25 rem. Exposure to 100 rems of radiation nausea, vomiting, headache causes. The loss of white blood cells. As a result, increases the likelihood of cancer.

4. Human carcinogenesis and exhibit symptoms of hair loss when exposed to 300 rem of radiation. I defend it against infection in white blood cells inside the body. The nuclear bomb during the war, people are still suffering.

5. Almost all people die when exposed to 450 rem. Exposure to radiation is lethal to 800 rem. The main symptoms are fever and diarrhea. However, very painful. There is no effective treatment.

6. Treatment There is no way yet to radiation therapy. The primary method of treatment is blood present. It is also one way to be a bone marrow transplant. Thus, we can stimulate the supply of white blood cells.