Problem: Many pesticides can be grouped into chemical families. Prominent insecticide families include organochlorines, organophosphates, and carbamates. Organochlorine hydrocarbons (e.g., DDT) could be separated into dichlorodiphenylethanes, cyclodiene compounds, and other related compounds. They operate by disrupting the sodium/potassium balance of the nerve fiber, forcing the nerve to transmit continuously. Their toxicities vary greatly, but they have been phased out because of their persistence and potential to bioaccumulate.:239–240 Organophosphate and carbamates largely replaced organochlorines. Both operate through inhibiting the enzyme acetylcholinesterase, allowing acetylcholine to transfer nerve impulses indefinitely and causing a variety of symptoms such as weakness or paralysis. Organophosphates are quite toxic to vertebrates, and have in some cases been replaced by less toxic carbamates.:136–137 Thiocarbamate and dithiocarbamates are subclasses of carbamates. Prominent families of herbicides include phenoxy and benzoic acid herbicides (e.g. 2,4-D), triazines (e.g., atrazine), ureas (e.g., diuron), and Chloroacetanilides (e.g., alachlor). Phenoxy compounds tend to selectively kill broad-leaf weeds rather than grasses. The phenoxy and benzoic acid herbicides function similar to plant growth hormones, and grow cells without normal cell division, crushing the plant's nutrient transport system.:300 Triazines interfere with photosynthesis.:335 Many commonly used pesticides are not included in these families, including glyphosate.
Why was the use of organochlorine hydrocarbons ended?
The answer is the following: because of their persistence and potential to bioaccumulate

Problem: It criticised Forsyth's decision to record a conversation with Harry as an abuse of teacher–student confidentiality and said "It is clear whichever version of the evidence is accepted that Mr Burke did ask the claimant to assist Prince Harry with text for his expressive art project ... It is not part of this tribunal's function to determine whether or not it was legitimate." In response to the tribunal's ruling concerning the allegations about Prince Harry, the School issued a statement, saying Forsyth's claims "were dismissed for what they always have been - unfounded and irrelevant." A spokesperson from Clarence House said, "We are delighted that Harry has been totally cleared of cheating."
The School dismissed claims that Prince Harry was cheating by saying the claims were what?
The answer is the following: unfounded and irrelevant

Problem: The advertised battery life on most models is different from the real-world achievable life. For example, the fifth generation 30 GB iPod is advertised as having up to 14 hours of music playback. An MP3.com report stated that this was virtually unachievable under real-life usage conditions, with a writer for MP3.com getting on average less than 8 hours from an iPod. In 2003, class action lawsuits were brought against Apple complaining that the battery charges lasted for shorter lengths of time than stated and that the battery degraded over time. The lawsuits were settled by offering individuals either US$50 store credit or a free battery replacement.
Which website criticized Apple's battery life claims?
The answer is the following: MP3.com

Problem: Prior to the rally, seven anti-China protestors were arrested in Hanoi after unfurling a banner and shouting "Boycott the Beijing Olympics" through a loudhailer at a market. A Vietnamese American was deported for planning protests against the torch, while a prominent blogger, Điếu Cày (real name Nguyễn Văn Hải), who blogged about protests around the world and who called for demonstrations in Vietnam, was arrested on charges of tax evasion. Outside Vietnam, there were protests by overseas Vietnamese in Paris, San Francisco and Canberra. Lê Minh Phiếu, a torchbearer who is a Vietnamese law student studying in France, wrote a letter to the president of the International Olympic Committee protesting China's "politicisation of the Olympics", citing maps of the torch relay at the official Beijing Olympic website depicting the disputed islands as Chinese territory and posted it on his blog. One day before the relay was to start, the official website appeared to have been updated to remove the disputed islands and dotted lines marking China's maritime claims in the South China Sea.
How many people protesting China were arrested in Hanoi prior to the rally?
The answer is the following:
seven