Confrontation is defines as -
A hostile or argumentative meeting or situation between opposing parties --
Example - "A confrontation with the legislature"
↑ ↑ ↑ Hope this helps! :D
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.
Picking up sediment and moving it to another area is called a deposit.
It could cause a big lost of the black bear population.
They can gradually decrease and this can lead to an end worse than the decrease in species