Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
This multilevel construct is consistent with Dasmann and Lovejoy. An explicit definition consistent with this interpretation was first given in a paper by Bruce A. Wilcox commissioned by the International Union for the Conservation of Nature and Natural Resources (IUCN) for the 1982 World National Parks Conference. Wilcox's definition was "Biological diversity is the variety of life forms...at all levels of biological systems (i.e., molecular, organismic, population, species and ecosystem)...". The 1992 United Nations Earth Summit defined "biological diversity" as "the variability among living organisms from all sources, including, 'inter alia', terrestrial, marine, and other aquatic ecosystems, and the ecological complexes of which they are part: this includes diversity within species, between species and of ecosystems". This definition is used in the United Nations Convention on Biological Diversity.
What year did the United Nations Earth Summit define "biological diversity"?
A: 1992

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The words of the comic playwright P. Terentius Afer reverberated across the Roman world of the mid-2nd century BCE and beyond. Terence, an African and a former slave, was well placed to preach the message of universalism, of the essential unity of the human race, that had come down in philosophical form from the Greeks, but needed the pragmatic muscles of Rome in order to become a practical reality. The influence of Terence's felicitous phrase on Roman thinking about human rights can hardly be overestimated. Two hundred years later Seneca ended his seminal exposition of the unity of humankind with a clarion-call:
Who was able to spread the idea of equality among all without any words?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The USB Battery Charging Specification Revision 1.1 (released in 2007) defines a new type of USB port, called the charging port. Contrary to the standard downstream port, for which current draw by a connected portable device can exceed 100 mA only after digital negotiation with the host or hub, a charging port can supply currents between 500 mA and 1.5 A without the digital negotiation. A charging port supplies up to 500 mA at 5 V, up to the rated current at 3.6 V or more, and drops its output voltage if the portable device attempts to draw more than the rated current. The charger port may shut down if the load is too high.
When was the USB Battery Charging Specification Revision 1.1 released?
A: in 2007

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The area surrounding Utrecht Centraal railway station and the station itself were developed following modernist ideas of the 1960s, in a brutalist style. This led to the construction of the shopping mall Hoog Catharijne (nl), music centre Vredenburg (Hertzberger, 1979), and conversion of part of the ancient canal structure into a highway (Catherijnebaan). Protest against further modernisation of the city centre followed even before the last buildings were finalised. In the early 21st century the whole area is being redeveloped. The music redeveloped music centre opened in 2014 where the original Vredenburg concert and rock and jazz halls are brought together in a single building.
What mall was built over part of the old canal system?
A:
unanswerable