We are asked what will we do if we fell off from the ship to the water or if we fall overboard into a cold water. Well, the best answer is that we should try to "reboard going back to the boat even if it is already swamped". We should swim harder and reach the boat and start to reboard into the boat again.
Male: 30-40 kg
Female: 22-32 kg
With the improvement of technology, we can better detect diseases such as cancer. The ability to use x-rays lets us detect thing such as broken bones. We have the ability to use MRIs and chemotherapy to treat patients. Without these, many lives would be lost. Hope I helped!
My guess would be the first, second, and fourth ones