Text: For nearly all models of induction cooktops, a cooking vessel must be made of, or contain, a ferrous metal such as cast iron or some stainless steels. The iron in the pot concentrates the current to produce heat in the metal. If the metal is too thin, or does not provide enough resistance to current flow, heating will not be effective. Most induction tops will not heat copper or aluminum vessels because the magnetic field cannot produce a concentrated current; ''all metal'' induction tops use much higher frequencies to overcome that effect. Any vessel can be used if placed on a suitable metal disk which functions as a conventional hotplate.

Question: can aluminum pots be used on induction cooktops?
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Answer: no

Text: An isomer (/asmr/; from Greek , isomeres; isos = ''equal'', meros = ''part'') of a molecule has the same number of atoms of each element, but has a different arrangement of the atoms. It has the same molecular formula as the other molecule, but with a different chemical structure. Isomers do not necessarily share similar properties, unless they also have the same functional groups. There are two main forms of isomerism (/asmrzm, as-/): structural isomerism (or constitutional isomerism) and stereoisomerism (or spatial isomerism).

Question: could two molecules contain the same sets of atoms but have different properties?
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Answer: yes

Text: The Juris Doctor degree (J.D. or JD), also known as the Doctor of Jurisprudence degree (J.D., JD, D.Jur. or DJur), is a graduate-entry professional degree in law and one of several Doctor of Law degrees. It is earned by completing law school in Australia, Canada and the United States, and some other common law countries. It has the academic standing of a professional doctorate in the United States, a master's degree in Australia, and a second-entry, baccalaureate degree in Canada, (in all three jurisdictions the same as other professional degrees such as M.D. or D.D.S., the degrees required to be a practicing physician or dentist, respectively).

Question: are you a doctor if you have a jd?
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Answer: yes

Text: While it was once the most dominant industry for residents in the Greater Toronto Area, agriculture now occupies a small percentage of the population, but still a large part of land in the surrounding four regional municipalities. Census data from 2006 has shown there are 3,707 census farms in the GTA, down 4.2% from 2001 and covering 274,363 hectares (677,970 acres). Almost every community in the GTA is currently experiencing a decrease in the acreage of farmland, with Mississauga seeing the most significant. The only communities in the GTA which are experiencing a growth in the acreage of farmland are Aurora, Georgina, Newmarket, Oshawa, Richmond Hill and Scugog, with Markham experiencing neither any growth nor decline. Most of the GTA's farmland is in Durham Region, with 55% of their total land area being farmland. This is followed by York Region with 41% of their lands being farm land, Peel Region with 34%, and Halton Region with 41%. Toronto's remaining farmland is completely within Rouge Park in the Rouge Valley. The average size of the farm in the GTA (183 acres (74 ha)) is much lower than the farms in the rest of Ontario (averaging 233 acres (0.94 km)). This has been attributed to the shift of farm types in the GTA from the traditional livestock and cash crop farms (requiring an extensive land base), towards more intensive enterprises including greenhouse, floriculture, nursery, vegetable, fruit, sheep and goats.

Question: is mississauga part of the greater toronto area?
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Answer:
yes