Problem: Rule of law:

The General Assembly has considered rule of law as an agenda item since 1992, with renewed interest since 2006 and has adopted resolutions at its last three sessions. The Security Council has held a number of thematic debates on the rule of law, and adopted resolutions emphasizing the importance of these issues in the context of women, peace and security, children in armed conflict, and the protection of civilians in armed conflict. The Peacebuilding Commission has also regularly addressed rule of law issues with respect to countries on its agenda. The Vienna Declaration and Programme of Action also requires the rule of law be included in human rights education.

What organization meets to discuss and determine the countries that are considered by the rule of law?
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A: The Peacebuilding Commission


Problem: Symbiosis:

Amensalism is the type of relationship that exists where one species is inhibited or completely obliterated and one is unaffected. This type of symbiosis is relatively uncommon in rudimentary reference texts, but is omnipresent in the natural world.[citation needed] There are two types of amensalism, competition and antibiosis. Competition is where a larger or stronger organisms deprives a smaller or weaker one from a resource. Antibiosis occurs when one organism is damaged or killed by another through a chemical secretion. An example of competition is a sapling growing under the shadow of a mature tree. The mature tree can begin to rob the sapling of necessary sunlight and, if the mature tree is very large, it can take up rainwater and deplete soil nutrients. Throughout the process the mature tree is unaffected. Indeed, if the sapling dies, the mature tree gains nutrients from the decaying sapling. Note that these nutrients become available because of the sapling's decomposition, rather than from the living sapling, which would be a case of parasitism.[citation needed] An example of antibiosis is Juglans nigra (black walnut), secreting juglone, a substance which destroys many herbaceous plants within its root zone.

What secrets juglone, a substance which enhances many herbaceous plants within its root zone?
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A: unanswerable


Problem: Light-emitting diode:

High-power LEDs (HP-LEDs) or high-output LEDs (HO-LEDs) can be driven at currents from hundreds of mA to more than an ampere, compared with the tens of mA for other LEDs. Some can emit over a thousand lumens. LED power densities up to 300 W/cm2 have been achieved. Since overheating is destructive, the HP-LEDs must be mounted on a heat sink to allow for heat dissipation. If the heat from a HP-LED is not removed, the device will fail in seconds. One HP-LED can often replace an incandescent bulb in a flashlight, or be set in an array to form a powerful LED lamp.

Up to how many densities have been achieved with LED power?
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A: 300 W/cm2


Problem: Railway electrification system:

1,500 V DC is used in the Netherlands, Japan, Republic Of Indonesia, Hong Kong (parts), Republic of Ireland, Australia (parts), India (around the Mumbai area alone, has been converted to 25 kV AC like the rest of India), France (also using 25 kV 50 Hz AC), New Zealand (Wellington) and the United States (Chicago area on the Metra Electric district and the South Shore Line interurban line). In Slovakia, there are two narrow-gauge lines in the High Tatras (one a cog railway). In Portugal, it is used in the Cascais Line and in Denmark on the suburban S-train system.

The Cascade Line is located where?
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A:
unanswerable