Problem: Other widely used alloys that contain zinc include nickel silver, typewriter metal, soft and aluminium solder, and commercial bronze. Zinc is also used in contemporary pipe organs as a substitute for the traditional lead/tin alloy in pipes. Alloys of 85–88% zinc, 4–10% copper, and 2–8% aluminium find limited use in certain types of machine bearings. Zinc is the primary metal used in making American one cent coins since 1982. The zinc core is coated with a thin layer of copper to give the impression of a copper coin. In 1994, 33,200 tonnes (36,600 short tons) of zinc were used to produce 13.6 billion pennies in the United States.
Zinc in the main metal used in making which american currency?
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Answer: one cent coins


Problem: Although Turkey and Israel did not establish full diplomatic relations until 1991, Turkey has cooperated with the State since its recognition of Israel in 1949. Turkey's ties to the other Muslim-majority nations in the region have at times resulted in pressure from Arab and Muslim states to temper its relationship with Israel. Relations between Turkey and Israel took a downturn after the 2008–09 Gaza War and Israel's raid of the Gaza flotilla. IHH, which organized the flotilla, is a Turkish charity that has been challenged on ties to Hamas and Al-Qaeda. Relations between Israel and Greece have improved since 1995 due to the decline of Israeli-Turkish relations. The two countries have a defense cooperation agreement and in 2010, the Israeli Air Force hosted Greece’s Hellenic Air Force in a joint exercise at the Uvda base. Israel is the second largest importer of Greek products in the Middle East. The joint Cyprus-Israel oil and gas explorations centered on the Leviathan gas field are an important factor for Greece, given its strong links with Cyprus. Cooperation in the world's longest sub-sea electric power cable, the EuroAsia Interconnector, has strengthened relations between Cyprus and Israel.
When did Turkey and Israel establish full diplomatic relations?
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Answer: 1991


Problem: The majority of studies indicate antibiotics do interfere with contraceptive pills, such as clinical studies that suggest the failure rate of contraceptive pills caused by antibiotics is very low (about 1%). In cases where antibacterials have been suggested to affect the efficiency of birth control pills, such as for the broad-spectrum antibacterial rifampicin, these cases may be due to an increase in the activities of hepatic liver enzymes' causing increased breakdown of the pill's active ingredients. Effects on the intestinal flora, which might result in reduced absorption of estrogens in the colon, have also been suggested, but such suggestions have been inconclusive and controversial. Clinicians have recommended that extra contraceptive measures be applied during therapies using antibacterials that are suspected to interact with oral contraceptives.
What is birth control failure rate due to antibiotics?
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Answer:
about 1%