[Q]: Extract the answer to the question from the following context. Question: How can one tell if a scientific hypothesis is properly structured? Context: Logically, no number of positive outcomes at the level of experimental testing can confirm a scientific theory, but a single counterexample is logically decisive: it shows the theory, from which the implication is derived, to be false. To say that a given statement (e.g., the statement of a law of some scientific theory) -- [call it "T"] -- is "falsifiable" does not mean that "T" is false. Rather, it means that, if "T" is false, then (in principle), "T" could be shown to be false, by observation or by experiment. Popper's account of the logical asymmetry between verification and falsifiability lies at the heart of his philosophy of science. It also inspired him to take falsifiability as his criterion of demarcation between what is, and is not, genuinely scientific: a theory should be considered scientific if, and only if, it is falsifiable. This led him to attack the claims of both psychoanalysis and contemporary Marxism to scientific status, on the basis that their theories are not falsifiable.
****
[A]: a theory should be considered scientific if, and only if, it is falsifiable

[Q]: Extract the answer to the question from the following context. Question: How will the $208 million allocated by congress be spent by the Air Force? Context: Specific concerns include a compounded inability for the Air Force to replace its aging fleet, and an overall reduction of strength and readiness. The USAF attempted to make these adjustments by primarily cutting the Air National Guard and Air Force Reserve aircraft fleets and their associated manpower, but Congress reversed this initiative and the majority of the lost manpower will come from the active forces. However, Congress did allow for $208 million of reprogramming from fleet modernization to enable some portion of the third of the grounded fleet to resume operations.
****
[A]: modernization

[Q]: Extract the answer to the question from the following context. Question: What additional understanding might be needed in overcoming dukkha beside its nature? Context: The teachings on the Four Noble Truths are regarded as central to the teachings of Buddhism, and are said to provide a conceptual framework for Buddhist thought. These four truths explain the nature of dukkha (suffering, anxiety, unsatisfactoriness), its causes, and how it can be overcome. The four truths are:[note 4]
****
[A]: its causes

[Q]: Extract the answer to the question from the following context. Question: What could the climate of the Sahara be described as? Context: The primary source of rain in the Sahara is the equatorial low a continuous belt of low-pressure systems near the equator which bring the brief, short and irregular rainy season to the Sahel and the southern Sahara. The Sahara doesn't lack precipitation because of a lack of moisture, but due to the lack of a precipitation-generating mechanism. Rainfall in this giant desert has to overcome the physical and atmospheric barriers that normally prevent the production of precipitation. The harsh climate of the Sahara is characterized by extremely low, unreliable, highly erratic rainfall; extremely high sunshine duration values; high temperatures year-round; negligible rates of relative humidity, a significant diurnal temperature variation and extremely high levels of potential evaporation which are the highest recorded worldwide.
****
[A]:
harsh