Answer:
1. x-rays
2. wavelength
3. (not sure thought it was wave frequency)
4. longitudinal
I believe it's 78273 sir and the rest are 1. 3. 3. 2 .4 for rows
Answer:
This war poster "QUIET! LOOSE TALK CAN COST LIVES!" Is playing on the idea of the incongruity of spies or traitors that can listen in on their conversations so it's basically telling everybody not to go around saying all of their plans because if they do they could all just end up dying.
Explanation:
I'm not 100% sure that this is the answer you were looking for but I hope this helps!
Answer:
eliminating political opposition
Explanation:
Bolsheviks acquired the power of Russia under the leadership of Vladimir Lenin and the worlds's first Marxist state came into being, on November 1917. The occupation of the strategic locations and important government building in the Russian capital at Petrograd was completed in just two days. As he promised he introduced land reforms, nationalized industries but at the same time he eliminated political opposition and became a virtual dictator of the USSR.
