Problem: Portugal is a significant European minerals producer and is ranked among Europe's leading copper producers. The nation is also a notable producer of tin, tungsten and uranium. However, the country lacks the potential to conduct hydrocarbon exploration and aluminium, a limitation that has hindered the development of Portugal's mining and metallurgy sectors. Although the country has vast iron and coal reservesmainly in the northafter the 1974 revolution and the consequent economic globalization, low competitiveness forced a decrease in the extraction activity for these minerals. The Panasqueira and Neves-Corvo mines are among the most recognised Portuguese mines that are still in operation.[citation needed]
In which region does Portugal have vast reserves of iron and coal?
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Answer: north

Problem: The modern term "culture" is based on a term used by the Ancient Roman orator Cicero in his Tusculanae Disputationes, where he wrote of a cultivation of the soul or "cultura animi", using an agricultural metaphor for the development of a philosophical soul, understood teleologically as the highest possible ideal for human development. Samuel Pufendorf took over this metaphor in a modern context, meaning something similar, but no longer assuming that philosophy was man's natural perfection. His use, and that of many writers after him "refers to all the ways in which human beings overcome their original barbarism, and through artifice, become fully human".
What term was used by the Ancient Roman Emperor Cicero in his Tusculanae Disputationes?
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Answer: unanswerable

Problem: The Battle of Worth (also known as Froschwiller or Reichshoffen) began when the two armies clashed again on 6 August near Worth in the town of Froschwiller, about 10 miles (16 km) from Wissembourg. The Crown Prince of Prussia's 3rd army had, on the quick reaction of his Chief of Staff General von Blumenthal, drawn reinforcements which brought its strength up to 140,000 troops. The French had been slowly reinforced and their force numbered only 35,000. Although badly outnumbered, the French defended their position just outside Froschwiller. By afternoon, the Germans had suffered c.10,500 killed or wounded and the French had lost a similar number of casualties and another c.9,200 men taken prisoner, a loss of about 50%. The Germans captured Froschwiller which sat on a hilltop in the centre of the French line. Having lost any hope for victory and facing a massacre, the French army disengaged and retreated in a westerly direction towards Bitche and Saverne, hoping to join French forces on the other side of the Vosges mountains. The German 3rd army did not pursue the French but remained in Alsace and moved slowly south, attacking and destroying the French garrisons in the vicinity.
What was the estimated number of troops in Prussia's 3rd Army?
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Answer:
140,000 troops