The reason why socialist governments often turn authoritarian are:
Having too much power eventually corrupts the holder.
When resistance builds, they try to suppress it because they feel socialism is the best way.
<h3>Why does socialism sometimes become authoritarianism?</h3>
Socialist governments tend to have too much power vested in the Executive in order to properly plan the economy. As a result, they often get corrupted because their power is inhibited.
When this corruption leads to inefficiency, authoritarianism is introduced to ensure that the citizens cannot overthrow the government which wants to keep power.
The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that B) tropical regions have more available water and higher levels of solar radiation.