Here is a question about this article: Chromobacterium violaceum and Pseudomonas fluorescens can both mobilize solid copper, as a cyanide compound. The ericoid mycorrhizal fungi associated with Calluna, Erica and Vaccinium can grow in copper metalliferous soils. The ectomycorrhizal fungus Suillus luteus protects young pine trees from copper toxicity. A sample of the fungus Aspergillus niger was found growing from gold mining solution; and was found to contain cyano metal complexes; such as gold, silver, copper iron and zinc. The fungus also plays a role in the solubilization of heavy metal sulfides.
What is the answer to this question: What fungi can grow in copper metalliferous soils?
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So... ericoid mycorrhizal fungi


Here is a question about this article: The economy has been growing quickly in recent years. In both 2010 and 2011, the metro area's gross domestic product (GDP) led 27 other metropolitan areas in the country, according to the Conference Board of Canada, recording growth of 6.6 per cent and 5.8 per cent respectively. At $52,000 the city's per capita GDP is the second highest out of all major Canadian cities. Economic forecasts suggest that the city will continue its strong economic growth in the coming years not only in the "oceanic" industries mentioned above, but also in tourism and new home construction as the population continues to grow. In May 2011, the city's unemployment rate fell to 5.6 per cent, the second lowest unemployment rate for a major city in Canada.
What is the answer to this question: What is the city's per capita GDP?
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So... $52,000


Here is a question about this article: As of 2010[update], 79.12% (1,112,441) of Philadelphia residents age 5 and older spoke English at home as a primary language, while 9.72% (136,688) spoke Spanish, 1.64% (23,075) Chinese, 0.89% (12,499) Vietnamese, 0.77% (10,885) Russian, 0.66% (9,240) French, 0.61% (8,639) other Asian languages, 0.58% (8,217) African languages, 0.56% (7,933) Cambodian (Mon-Khmer), and Italian was spoken as a main language by 0.55% (7,773) of the population over the age of five. In total, 20.88% (293,544) of Philadelphia's population age 5 and older spoke a mother language other than English.
What is the answer to this question: What percent of 5 year olds or older speak Spanish?
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So...
9.72%