I believe that finding the balance of drones would be putting a limit on how many drones a country can use at one time. I'm not sure on the other 2 questions.
Answer:
1917
Explanation:
The Tsarist autocracy collapsed in 1917 due to the following reasons— (a) Miserable Condition of the Workers (i) The industrial workers in Russia got very low wages. (ii) They had very long working hours, sometimes upto 15 hours.
Hello!
The answers are Columns, Domes, and Arches.
Hope this helps :))
<span>the answer i got was 1650 miles.</span>
I think it's false
( I'm not super sure about it but I think it's false)