L-dopa is effective against Parkinson's, but its enantiomer D-dopa is not. An enantiomers drug may not be equally effective. The enantiomer, in chemistry, is one of two stereoisomers that are mirror images of each other that are non-superposable, much as one's left and right hands are the same except for being reversed along one axis. It is also known as an optical isomer.
1. Embargo - An official ban or trade or other commercial activity with a particular country.
2. Tariff - Tax on imports.
3. Economic growth - The ability of the economy to increase the production of goods and services.
4. Specialization - Workers concentrate on producing those goods and services for which they have a competitive advantage.
5. Currency exchange rate - The price of one country's currency expressed in terms of another country's currency.
6. Quota - Limitation on imports.
7. Voluntary free trade - An ideal feature of a global economy; it is when each party involved in a trade expects to gain from the trade.
8. Trade barriers - Restrictions placed on trade, for example tariffs and quotas.
Answer:
Dictatorship
Explanation:
An example of a country with a dictatorship is Chad(Which is in Africa)
