The front memeory!!!!!!!!!!!!!!!!!!!
13 - 5 = 8 (eight classical music discs were bought.)
Answer:
Approximately 40 battles.
The answer would be : D. Russian adaptation to extreme cold
If a steel is exposed to an extreme low temperature over prolonged period of time, the structural form of the steal could be damaged, which could lead to a destruction of a building's foundation. In order to prevent this, a country which extreme winter such as Russia developed a special steel that won't crack.