Question: Read this and answer the question

In 2011, the Aragonese government passed a decree for the establishment of a new language regulator of Catalan in La Franja (the so-called Catalan-speaking areas of Aragon). The new entity, designated as Academia Aragonesa del Catala, shall allow a facultative education in Catalan and a standardization of the Catalan language in La Franja.

When did the government of Aragon degree the establishment of a language regulator?
Answer: 2011
Question: Read this and answer the question

In theory, the stadtholders were freely appointed by and subordinate to the states of each province. However, in practice the princes of Orange of the House of Orange-Nassau, beginning with William the Silent, were always chosen as stadtholders of most of the provinces. Zeeland and usually Utrecht had the same stadtholder as Holland.

Which states had the same stadtholder as Holland?
Answer: Zeeland and usually Utrecht
Question: Read this and answer the question

Most electrification systems use overhead wires, but third rail is an option up to about 1,200 V. Third rail systems exclusively use DC distribution. The use of AC is not feasible because the dimensions of a third rail are physically very large compared with the skin depth that the alternating current penetrates to (0.3 millimetres or 0.012 inches) in a steel rail). This effect makes the resistance per unit length unacceptably high compared with the use of DC. Third rail is more compact than overhead wires and can be used in smaller-diameter tunnels, an important factor for subway systems.

What depth does the alternating current penetrate in a steel rail?
Answer:
skin depth