Answer:
Option (4)
Explanation:
The radiation are defined as the energy that is liberated from atoms in the form of electromagnetic waves or minute particles of matter. For example, the radiations that are emitted from the sun in the form of light.
This radiations are mainly of 3 types. This includes-
(a) Alpha Radiation- These are the short ranged particles and are very heavy. This radiations cannot penetrate the human skins but they can cause harmful diseases.
(b) Beta Radiation- These are also the short-ranged particles but they lighter. This radiations can penetrate the human skin upto the depth where the new skins are created.
(c) Gamma Radiation- These are highly dangerous and are penetrable to the human skin. This type of radiations are often used for the medical purposes.
Thus, the correct answer is option (4).
I think it is the 3rd answer choice.
With some types of criticism, it is intended as help or advise, and with others it’s intended to make someone else look or feel bad.
Example: Billy was attempting a handstand on a ladder. Suzy told him it was a bad idea, and that he should get down. This is an example of helpful criticism, because Suzy did not want Billy to get hurt.
Suzy bought a new sweater. Billy told her it was ugly and he would never be seen in public wearing it. This is poorly delivered criticism because it sounded cruel. Billy might have been trying to give helpful advice, but it sounded mean.
