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.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What percentage of birth control pill failure is attributed to estrogens?
Ah, so.. unanswerable

At low frequencies (such as AM broadcast), arrays of vertical towers are used to achieve directionality  and they will occupy large areas of land. For reception, a long Beverage antenna can have significant directivity. For non directional portable use, a short vertical antenna or small loop antenna works well, with the main design challenge being that of impedance matching. With a vertical antenna a loading coil at the base of the antenna may be employed to cancel the reactive component of impedance; small loop antennas are tuned with parallel capacitors for this purpose.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): For radio broadcast that one would hear in their car what type of towers are used?
Ah, so.. vertical

Gaddafi sought to develop closer links in the Maghreb; in January 1974 Libya and Tunisia announced a political union, the Arab Islamic Republic. Although advocated by Gaddafi and Tunisian President Habib Bourguiba, the move was deeply unpopular in Tunisia and soon abandoned. Retaliating, Gaddafi sponsored anti-government militants in Tunisia into the 1980s. Turning his attention to Algeria, in 1975 Libya signed the Hassi Messaoud defence agreement allegedly to counter "Moroccan expansionism", also funding the Polisario Front of Western Sahara in their independence struggle against Morocco. Seeking to diversify Libya's economy, Gaddafi's government began purchasing shares in major European corporations like Fiat as well as buying real estate in Malta and Italy, which would become a valuable source of income during the 1980s oil slump.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was the name of the abortive political union between Tunisia and Libya in 1974?
Ah, so..
Arab Islamic Republic