How radiation works
Class 7
Answers
Answer:
Radiation works by making small breaks in the DNA inside cells. These breaks keep cancer cells from growing and dividing and cause them to die. Nearby normal cells can also be affected by radiation, but most recover and go back to working the way they should.
Explanation:
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Answer: This may help you
Explanation:
The heat given off from the sun cannot reach us by the process of conduction or convection because both the processes requires a medium to transfer the heat but due to absence of a medium such as air in maximum layers of space between the earth and the sun these processes cannot transfer the heat to the earth.
At this moment another process called radiation comes into act to transfer the heat radiated by the sun to the earth. This heat transferring process doesn’t require any medium.