D. Land. The Italians wanted more land then the treaty gave them.
1) Oil prices and economic inefficiency.
Yamani, declared that Saudi Arabia was quitting the agreement on oil production restraint, and started to boost its share in the oil market. After this, Saudi Arabia increased oil production by 5.5 fold, and oil prices dropped by 6.1 fold,
2) ethnic tensions
3) Gorbachev’s reforms
Almost all humans to a certain extent are dissatisfied with the limited availability of resources, but if you're speaking from an academic point of view, it would be Economists, since they study choices made from this limited availability.
<span>African Americans didn't request the privilege to vote at that time did not fully understand their rights and did not make any moves or even campaign to be allowed that right as citizens of the united states of America.
Also, The number of African Americans were more than the White people, if they really vote, and their elected representatives win most senate or other such positions the white people will have less impact in the affairs of the government.</span><span />
By annexing Ukrainian land on the Black Sea coast, Putin also annexes the rights to any hydrocarbons found in its maritime zones.