The reason for language diversion is the isolation of the people who speak the same language, but due to diversion and lesser contact between these people, now the language is used only in the dialects.
Answer:

Explanation:
thickness of aerosol layer is 2.5 km
zenith angle is 40 degree
we know that

where

is extinction coefficient
extiction cross section
N = Concentration





transimiitance 


The answer would be all of the above
Answer:
Correct answer is D cultural assimilation
Explanation:
D is the correct answer because it refers to a wide process of total lost of previous cultural pattern, and adoption to the new system of values.
A is wrong because it refers to multiple cultures who are cohabiting in one place.
B is wrong because it would mean that some aspects of previous culture are preserved.
The same goes with C because it refers to people who have different ethnic backgrounds in the family.
A layer of the earths atmosphere above the mesosphere and below the exosphere.