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From April 2023, 1989, pre-election meetings were held in Lviv for four consecutive days, drawing crowds of up to 25,000. The action included an one-hour warning strike at eight local factories and institutions. It was the first labor strike in Lviv since 1944. On May 3, a pre-election rally attracted 30,000 in Lviv. On May 7, The Memorial Society organized a mass meeting at Bykivnia, site of a mass grave of Ukrainian and Polish victims of Stalinist terror. After a march from Kiev to the site, a memorial service was staged.
Where did the strike take place?
A: eight local factories and institutions

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Cyprus (i/saprs/; Greek: IPA: [cipros]; Turkish: Kbrs IPA: [kbs]), officially the Republic of Cyprus (Greek: ; Turkish: Kbrs Cumhuriyeti), is an island country in the Eastern Mediterranean Sea, off the coasts of Syria and Turkey.[e] Cyprus is the third largest and third most populous island in the Mediterranean, and a member state of the European Union. It is located south of Turkey, west of Syria and Lebanon, northwest of Israel and Palestine, north of Egypt and east of Greece.
Which country is north of Cyprus?
A: Turkey

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Antarctica continued to become more isolated and finally developed a permanent ice cap. Mountain building in western North America continued, and the Alps started to rise in Europe as the African plate continued to push north into the Eurasian plate, isolating the remnants of Tethys Sea. A brief marine incursion marks the early Oligocene in Europe. There appears to have been a land bridge in the early Oligocene between North America and Europe since the faunas of the two regions are very similar. During the Oligocene, South America was finally detached from Antarctica and drifted north toward North America. It also allowed the Antarctic Circumpolar Current to flow, rapidly cooling the continent.
What permanent structure formed on Antarctica?
A: ice cap

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For "closed systems" with no external source or sink of energy, the first law of thermodynamics states that a system's energy is constant unless energy is transferred in or out by mechanical work or heat, and that no energy is lost in transfer. This means that it is impossible to create or destroy energy. While heat can always be fully converted into work in a reversible isothermal expansion of an ideal gas, for cyclic processes of practical interest in heat engines the second law of thermodynamics states that the system doing work always loses some energy as waste heat. This creates a limit to the amount of heat energy that can do work in a cyclic process, a limit called the available energy. Mechanical and other forms of energy can be transformed in the other direction into thermal energy without such limitations. The total energy of a system can be calculated by adding up all forms of energy in the system.
How can the total energy of a system be calculated?
A:
by adding up all forms of energy in the system