Problem: Peace negotiations at the Congress of Paris resulted in the signing of the Treaty of Paris on 30 March 1856. In compliance with article III, Russia restored to the Ottoman Empire the city and citadel of Kars in common with "all other parts of the Ottoman territory of which the Russian troop were in possession". Russia ceded some land in Bessarabia at the mouth of the Danube to Moldavia. By article IV The United Kingdom, France, Sardinia and Turkey restored to Russia "the towns and ports of Sevastopol, Balaklava, Kamish, Eupatoria, Kerch, Jenikale, Kinburn, as well as all other territories occupied by the allied troops". In conformity with article XI and XIII, the Tsar and the Sultan agreed not to establish any naval or military arsenal on the Black Sea coast. The Black Sea clauses weakened Russia, and it no longer posed a naval threat to the Ottomans. The principalities of Moldavia and Wallachia were nominally returned to the Ottoman Empire; in practice they became independent. The Great Powers pledged to respect the independence and territorial integrity of the Ottoman Empire.:43233
Who were the principalities of Moldavia and Wallachia later return to?
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Answer: the Ottoman Empire

Problem: North Carolina was hard hit by the Great Depression, but the New Deal programs of Franklin D. Roosevelt for cotton and tobacco significantly helped the farmers. After World War II, the state's economy grew rapidly, highlighted by the growth of such cities as Charlotte, Raleigh, and Durham in the Piedmont. Raleigh, Durham, and Chapel Hill form the Research Triangle, a major area of universities and advanced scientific and technical research. In the 1990s, Charlotte became a major regional and national banking center. Tourism has also been a boon for the North Carolina economy as people flock to the Outer Banks coastal area and the Appalachian Mountains anchored by Asheville.
In the 1990's what NC city became a national banking center?
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Answer: Charlotte

Problem: In order to reduce negative impacts, it is desirable that pesticides be degradable or at least quickly deactivated in the environment. Such loss of activity or toxicity of pesticides is due to both innate chemical properties of the compounds and environmental processes or conditions. For example, the presence of halogens within a chemical structure often slows down degradation in an aerobic environment. Adsorption to soil may retard pesticide movement, but also may reduce bioavailability to microbial degraders.
What feature is wanted to assist with reducing negative impacts of pesticides?
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Answer:
that pesticides be degradable