The Xeer legal system is assumed to have developed exclusively in the Horn of Africa since approximately the 7th century. There is no evidence that it developed elsewhere or was greatly influenced by any foreign legal system. The fact that Somali legal terminology is practically devoid of loan words from foreign languages suggests that Xeer is truly indigenous.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In what century did the Xeer system begin?
Ah, so.. 7th

Thermal mass systems can store solar energy in the form of heat at domestically useful temperatures for daily or interseasonal durations. Thermal storage systems generally use readily available materials with high specific heat capacities such as water, earth and stone. Well-designed systems can lower peak demand, shift time-of-use to off-peak hours and reduce overall heating and cooling requirements.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the system called that can store solar energy in the form of heat?
Ah, so.. Thermal mass systems

The staple products of Samoa are copra (dried coconut meat), cocoa bean (for chocolate), and bananas. The annual production of both bananas and copra has been in the range of 13,000 to 15,000 metric tons (about 14,500 to 16,500 short tons). If the rhinoceros beetle in Samoa were eradicated, Samoa could produce in excess of 40,000 metric tons (44,000 short tons) of copra. Samoan cocoa beans are of very high quality and used in fine New Zealand chocolates. Most are Criollo-Forastero hybrids. Coffee grows well, but production has been uneven. WSTEC is the biggest coffee producer. Rubber has been produced in Samoa for many years, but its export value has little impact on the economy.[citation needed]
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In how many tons is the annual production of coffee?
Ah, so..
unanswerable