Question: It is often said that Russia was militarily weak, technologically backward, and administratively incompetent. Despite its grand ambitions toward the south, it had not built its railroad network in that direction, and communications were poor. The bureaucracy was riddled with graft, corruption and inefficiency and was unprepared for war. Its navy was weak and technologically backward; its army, although very large, was good only for parades, suffered from colonels who pocketed their men's pay, poor morale, and was out of touch with the latest technology developed by Britain and France. By the war's end, everyone realized the profound weaknesses of the Russian military, and the Russian leadership was determined to reform it.
Try to answer this question if possible: What did Russia fail to build south?
Answer: railroad network
Question: The term "push-pull" was established in 1987 as an approach for integrated pest management (IPM). This strategy uses a mixture of behavior-modifying stimuli to manipulate the distribution and abundance of insects. "Push" means the insects are repelled or deterred away from whatever resource that is being protected. "Pull" means that certain stimuli (semiochemical stimuli, pheromones, food additives, visual stimuli, genetically altered plants, etc.) are used to attract pests to trap crops where they will be killed. There are numerous different components involved in order to implement a Push-Pull Strategy in IPM.
Try to answer this question if possible: What is one thing that can be used to pull pests?
Answer: food additives
Question: At extremely large airports, a circuit is in place but not usually used. Rather, aircraft (usually only commercial with long routes) request approach clearance while they are still hours away from the airport, often before they even take off from their departure point. Large airports have a frequency called Clearance Delivery which is used by departing aircraft specifically for this purpose. This then allows aircraft to take the most direct approach path to the runway and land without worrying about interference from other aircraft. While this system keeps the airspace free and is simpler for pilots, it requires detailed knowledge of how aircraft are planning to use the airport ahead of time and is therefore only possible with large commercial airliners on pre-scheduled flights. The system has recently become so advanced that controllers can predict whether an aircraft will be delayed on landing before it even takes off; that aircraft can then be delayed on the ground, rather than wasting expensive fuel waiting in the air.
Try to answer this question if possible: What kind of aircraft request to use a circuit when they are still hours from the airport?
Answer: unanswerable
Question: Hunter-gatherer societies manifest significant variability, depending on climate zone/life zone, available technology and societal structure. Archaeologists examine hunter-gatherer tool kits to measure variability across different groups. Collard et al. (2005) found temperature to be the only statistically significant factor to impact hunter-gatherer tool kits. Using temperature as a proxy for risk, Collard et al.'s results suggest that environments with extreme temperatures pose a threat to hunter-gatherer systems significant enough to warrant increased variability of tools. These results support Torrence's (1989) theory that risk of failure is indeed the most important factor in determining the structure of hunter-gatherer toolkits.
Try to answer this question if possible: Torrence found temperature to be a significant factor for toolkits in what year?
Answer:
unanswerable