Problem: Canada also permits a variety of charities (including public and private foundations). Charitable status is granted by the Canada Revenue Agency (CRA) upon application by a nonprofit; charities are allowed to issue income tax receipts to donors, must spend a certain percentage of their assets (including cash, investments and fixed assets) and file annual reports in order to maintain their charitable status. In determining whether an organization can become a charity, CRA applies a common law test to its stated objects and activities. These must be:
What test must be taken for a NPO to keep its status?
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Answer: unanswerable

Problem: The alkali metal ions are small and mobile; their presence in glass allows a degree of electrical conductivity, especially in molten state or at high temperature. Their mobility decreases the chemical resistance of the glass, allowing leaching by water and facilitating corrosion. Alkaline earth ions, with their two positive charges and requirement for two non-bridging oxygen ions to compensate for their charge, are much less mobile themselves and also hinder diffusion of other ions, especially the alkalis. The most common commercial glasses contain both alkali and alkaline earth ions (usually sodium and calcium), for easier processing and satisfying corrosion resistance. Corrosion resistance of glass can be achieved by dealkalization, removal of the alkali ions from the glass surface by reaction with e.g. sulfur or fluorine compounds. Presence of alkaline metal ions has also detrimental effect to the loss tangent of the glass, and to its electrical resistance; glasses for electronics (sealing, vacuum tubes, lamps...) have to take this in account.
What can alkaline ions in glass harm, in addition to electrical resistance?
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Answer: loss tangent

Problem: In some countries, the personal copying exemption explicitly requires that the content being copied was obtained legitimately i.e., from authorized sources, not file-sharing networks. Other countries, such as the Netherlands, make no such distinction; the exemption there had been assumed, even by the government, to apply to any such copying, even from file-sharing networks. However, in April 2014, the Court of Justice of the European Union ruled that "national legislation which makes no distinction between private copies made from lawful sources and those made from counterfeited or pirated sources cannot be tolerated." Thus, in the Netherlands, for example, downloading from file-sharing networks is no longer legal.
What does the personal copying exemption explicitly need?
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Answer:
was obtained legitimately