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).
The Indo-European tribe called the Aryans invaded and conquered the Indus Valley Civilization, but many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change.
The explanation is that the two continents must have been once connect to form a super continent called Pangaea. The fossil was part of a herd that probably crossed Pangaea. When Pangaea split animals were on both sides. That is why fossils found in South America are found in Africa.
Hey!
Its called the <span>Moho!
Hope this helps!
Godspeed
-Song</span>
