<span>The correct answer is letter D. The European unification aimed to create a common, multicultural society. </span>
A Landslide is a type of mass movement that occurs when a thin block of soil, rock, and debris separates from the underlying bedrock.
Actually, this thin block of soil and rocks were held by Tree's roots so it do not separated from the bedrock. Now days, more and more trees were cutted down for modern development, and more landslides happen because of this.
The answer is - adiabatic lapse rate.
Adiabatic lapse rate refers to the rate at which the air expansion cools. For the dry air it has the value of 9.8 degrees per kilometer. When the air that is saturated starts rising and cools, the process of condensation of water vapor begins, releasing latent heat in the process.