Problem: Chihuahua (state):

The state has the 12th-largest state economy in Mexico, accounting for 2.7% of the country's GDP. Chihuahua has the fifth highest manufacturing GDP in Mexico and ranks second for the most factories funded by foreign investment in the country. As of 2011[update], the state had an estimated 396 billion pesos (31.1 billion dollars) of annual GDP. According to official federal statistical studies, the service sector accounted for the largest portion of the state economy at 59.28%; the manufacturing and industrial sector is estimated to account for 34.36% of the state's GDP, with the agricultural sector accounting for 6.36% of the state's GDP. Manufacturing sector was the principal foreign investment in the state followed by the mining sector. In 2011, the state received approximately 884 million dollars in remittances from the United States, which was 4.5% of all remittances from the United States to Mexico.

Which sector was the second largest?
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A: the manufacturing and industrial sector

Problem: Slavs:

The Slavs under name of the Antes and the Sclaveni make their first appearance in Byzantine records in the early 6th century. Byzantine historiographers under Justinian I (527565), such as Procopius of Caesarea, Jordanes and Theophylact Simocatta describe tribes of these names emerging from the area of the Carpathian Mountains, the lower Danube and the Black Sea, invading the Danubian provinces of the Eastern Empire.

The Slavs make their first appearance in Byzantine records when?
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A: in the early 6th century

Problem: On the Origin of Species:

Various evolutionary ideas had already been proposed to explain new findings in biology. There was growing support for such ideas among dissident anatomists and the general public, but during the first half of the 19th century the English scientific establishment was closely tied to the Church of England, while science was part of natural theology. Ideas about the transmutation of species were controversial as they conflicted with the beliefs that species were unchanging parts of a designed hierarchy and that humans were unique, unrelated to other animals. The political and theological implications were intensely debated, but transmutation was not accepted by the scientific mainstream.

Which group of scientists began to support evolutionary ideas?
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A: dissident anatomists

Problem: Samoa:

The country currency is the Samoan tala, issued and regulated by the Central Bank of Samoa. The economy of Samoa has traditionally been dependent on agriculture and fishing at the local level. In modern times, development aid, private family remittances from overseas, and agricultural exports have become key factors in the nation's economy. Agriculture employs two-thirds of the labour force, and furnishes 90% of exports, featuring coconut cream, coconut oil, noni (juice of the nonu fruit, as it is known in Samoan), and copra.

How much of the country uses the Samoa tala?
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A:
unanswerable