Problem: Renewable energy commercialization:

Worldwide use of solar power and wind power continued to grow significantly in 2012. Solar electricity consumption increased by 58 percent, to 93 terawatt-hours (TWh). Use of wind power in 2012 increased by 18.1 percent, to 521.3 TWh. Global solar and wind energy installed capacities continued to expand even though new investments in these technologies declined during 2012. Worldwide investment in solar power in 2012 was $140.4 billion, an 11 percent decline from 2011, and wind power investment was down 10.1 percent, to $80.3 billion. But due to lower production costs for both technologies, total installed capacities grew sharply. This investment decline, but growth in installed capacity, may again occur in 2013. Analysts expect the market to triple by 2030. In 2015, investment in renewables exceeded fossils.

Analysts expect the market to triple by what year?
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A: 2030


Problem: On 1 January 1967, Yugoslavia was the first communist country to open its borders to all foreign visitors and abolish visa requirements. In the same year Tito became active in promoting a peaceful resolution of the Arab–Israeli conflict. His plan called for Arabs to recognize the state of Israel in exchange for territories Israel gained.
Whose plan called for Arabs to recognize the state of Israel in exchange for territories Israel gained?
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Answer: Tito


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The halogen lamp reduces uneven evaporation of the filament and eliminates darkening of the envelope by filling the lamp with a halogen gas at low pressure, rather than an inert gas. The halogen cycle increases the lifetime of the bulb and prevents its darkening by redepositing tungsten from the inside of the bulb back onto the filament. The halogen lamp can operate its filament at a higher temperature than a standard gas filled lamp of similar power without loss of operating life. Such bulbs are much smaller than normal incandescent bulbs, and are widely used where intense illumination is needed in a limited space. Fiber-optic lamps for optical microscopy is one typical application.
Where are halogen bulbs not widely used?
A: unanswerable


Context and question: In an ecosystem, predation is a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation often results in the death of the prey and the eventual absorption of the prey's tissue through consumption. Thus predation is often, though not always, carnivory. Other categories of consumption are herbivory (eating parts of plants), fungivory (eating parts of fungi), and detritivory (the consumption of dead organic material (detritus)). All these consumption categories fall under the rubric of consumer-resource systems. It can often be difficult to separate various types of feeding behaviors. For example, some parasitic species prey on a host organism and then lay their eggs on it for their offspring to feed on it while it continues to live in or on its decaying corpse after it has died. The key characteristic of predation however is the predator's direct impact on the prey population. On the other hand, detritivores simply eat dead organic material arising from the decay of dead individuals and have no direct impact on the "donor" organism(s).
What must a species do in order to be classified as a predator?
Answer: direct impact on the prey population


Question: Throughout the course of its life, a number of peripherals were released which added to the functionality of the SNES. Many of these devices were modeled after earlier add-ons for the NES: the Super Scope is a light gun functionally similar to the NES Zapper (though the Super Scope features wireless capabilities) and the Super Advantage is an arcade-style joystick with adjustable turbo settings akin to the NES Advantage. Nintendo also released the SNES Mouse in conjunction with its Mario Paint title. Hudson Soft, under license from Nintendo, released the Super Multitap, a multiplayer adapter for use with its popular series of Bomberman games. Some of the more unusual controllers include the BatterUP baseball bat, the Life Fitness Entertainment System (an exercise bike controller with built-in monitoring software), and the TeeV Golf golf club.
Is there an answer to this question: What game accessory was similar to the NES Zapper?

Answer: Super Scope


QUES: Seattle is considered the home of grunge music, having produced artists such as Nirvana, Soundgarden, Alice in Chains, Pearl Jam, and Mudhoney, all of whom reached international audiences in the early 1990s. The city is also home to such varied artists as avant-garde jazz musicians Bill Frisell and Wayne Horvitz, hot jazz musician Glenn Crytzer, hip hop artists Sir Mix-a-Lot, Macklemore, Blue Scholars, and Shabazz Palaces, smooth jazz saxophonist Kenny G, classic rock staples Heart and Queensrÿche, and alternative rock bands such as Foo Fighters, Harvey Danger, The Presidents of the United States of America, The Posies, Modest Mouse, Band of Horses, Death Cab for Cutie, and Fleet Foxes. Rock musicians such as Jimi Hendrix, Duff McKagan, and Nikki Sixx spent their formative years in Seattle.

What style of music does Sir Mix-a-Lot and Macklemore represent in Seattle?
What is the answer?
ANS:
hip hop