9000/10=900 people per square mile
Answer:
option (c) 14.7 lbs
Explanation:
Data provided in the question:
Area of the column = 1 square inch
Now,
we know Air pressure at the ground surface level from the atmosphere
= 14.7 Psi
also, it can be represented as
14.7 Psi = 14.7 pounds per square inch
Therefore,
Weight of the air weigh within a column that is 1 square inch in area
= Air pressure × Area
= 14.7 pounds per square inch × 1 square inch
= 14.7 pounds i.e 14.7 lbs
Hence,
The answer is option (c) 14.7 lbs
OKAY SO, do you have any more info?
Answer:
The main contribution of land routes to India in ancient times are :
The main contribution of land routes to India in ancient times are :
(i) Trade.
(ii) Expansion of scientific knowledge.
(iii) Learning of other nations and cultures.
(i) Trade flourished through the land trade routes.
True. i just took this quiz, so i'm happy to help with any other questions.
