Question: Luftwaffe policy at this point was primarily to continue progressive attacks on London, chiefly by night attack; second, to interfere with production in the vast industrial arms factories of the West Midlands, again chiefly by night attack; and third to disrupt plants and factories during the day by means of fighter-bombers. Kesselring, commanding Luftflotte 2, was ordered to send 50 sorties per night against London and attack eastern harbours in daylight. Sperrle, commanding Luftflotte 3, was ordered to dispatch 250 sorties per night including 100 against the West Midlands. Seeschlange would be carried out by Fliegerkorps X (10th Air Corps) which concentrated on mining operations against shipping. It also took part in the bombing over Britain. By 19/20 April 1941, it had dropped 3,984 mines, of the total dropped. The mines' ability to destroy entire streets earned them respect in Britain, but several fell unexploded into British hands allowing counter-measures to be developed which damaged the German anti-shipping campaign.
Is there an answer to this question: By April of 1941 about how many mines had been dropped?

Answer: 3,984 mines

Question: Some researchers believe that the first Russian settlement in Alaska was established in the 17th century. According to this hypothesis, in 1648 several koches of Semyon Dezhnyov's expedition came ashore in Alaska by storm and founded this settlement. This hypothesis is based on the testimony of Chukchi geographer Nikolai Daurkin, who had visited Alaska in 17641765 and who had reported on a village on the Kheuveren River, populated by "bearded men" who "pray to the icons". Some modern researchers associate Kheuveren with Koyuk River.
Is there an answer to this question: During what time period do some researchers believe Russians settled in Alaska?

Answer: 17th century

Question: In the wake of these external defeats, the Guangxu Emperor initiated the Hundred Days' Reform of 1898. Newer, more radical advisers such as Kang Youwei were given positions of influence. The emperor issued a series of edicts and plans were made to reorganize the bureaucracy, restructure the school system, and appoint new officials. Opposition from the bureaucracy was immediate and intense. Although she had been involved in the initial reforms, the empress dowager stepped in to call them off, arrested and executed several reformers, and took over day-to-day control of policy. Yet many of the plans stayed in place, and the goals of reform were implanted.
Is there an answer to this question: Who took over the policy of China?

Answer: empress dowager

Question: Two assumptions underpinned the British approach to HAA fire; first, aimed fire was the primary method and this was enabled by predicting gun data from visually tracking the target and having its height. Second, that the target would maintain a steady course, speed and height. This HAA was to engage targets up to 24,000 feet. Mechanical, as opposed to igniferous, time fuses were required because the speed of powder burning varied with height so fuse length was not a simple function of time of flight. Automated fire ensured a constant rate of fire that made it easier to predict where each shell should be individually aimed.
Is there an answer to this question: Along with predicting the gun data from tracking the target, what else needed to be known about the target to enable the aimed fire?

Answer:
its height