Author Question: In the monazite sands region of Kerala, India, adults, children, and unborn children receive ... (Read 63 times)

hubes95 · **on:** Jul 28, 2018

In the monazite sands region of Kerala, India, adults, children, and unborn children receive relatively high doses of radioactivity. The cancer rate is no different there from the rest of Kerala, where people receive much lower doses.

(92) How could this be possible? Give your reasoning in your answer.

Question 2

You ride in an automobile traveling at 100 km/h. It comes to a stop over 0.5 seconds. You can be sure that

a. the car's engine has stopped.
b. a velocity acts.
c. friction between the tires and the road stopped it.
d. the car had a nonzero acceleration during that time.
e. none of the other answers is correct.

atrochim · **Reply #1 on:** Jul 28, 2018

Answer to Question 1

People have been bathed in radiation from their beginnings as a species.
Mechanisms in living things have evolved to undo cellular damage such as can be caused by
radiation. Some people believe in hormesis, the beneficial effects of exposure to low levels
of radiation that somehow toughens the body's responses. People who have long lived
in regions such as Kerala may have developed subtle coping mechanisms that allow their
bodies to minimize harm from the omnipresent radiation.
Actually, the result is a big mystery that is still being studied. If you don't have the answer,
don't despairno one else does, either.

Answer to Question 2

D