Problem: In cosmology and astronomy the phenomena of stars, nova, supernova, quasars and gamma-ray bursts are the universe's highest-output energy transformations of matter. All stellar phenomena (including solar activity) are driven by various kinds of energy transformations. Energy in such transformations is either from gravitational collapse of matter (usually molecular hydrogen) into various classes of astronomical objects (stars, black holes, etc.), or from nuclear fusion (of lighter elements, primarily hydrogen). The nuclear fusion of hydrogen in the Sun also releases another store of potential energy which was created at the time of the Big Bang. At that time, according to theory, space expanded and the universe cooled too rapidly for hydrogen to completely fuse into heavier elements. This meant that hydrogen represents a store of potential energy that can be released by fusion. Such a fusion process is triggered by heat and pressure generated from gravitational collapse of hydrogen clouds when they produce stars, and some of the fusion energy is then transformed into sunlight.
What theory states that space expanded and the universe cooled too rapidly for hydrogen to completely fuse into heavier elements?
The answer is the following: Big Bang

Problem: Hunting is claimed to give resource managers an important tool in managing populations that might exceed the carrying capacity of their habitat and threaten the well-being of other species, or, in some instances, damage human health or safety.[citation needed] However, in most circumstances carrying capacity is determined by a combination habitat and food availability, and hunting for 'population control' has no effect on the annual population of species.[citation needed] In some cases, it can increase the population of predators such as coyotes by removing territorial bounds that would otherwise be established, resulting in excess neighbouring migrations into an area, thus artificially increasing the population. Hunting advocates[who?] assert that hunting reduces intraspecific competition for food and shelter, reducing mortality among the remaining animals. Some environmentalists assert[who?] that (re)introducing predators would achieve the same end with greater efficiency and less negative effect, such as introducing significant amounts of free lead into the environment and food chain.
What do some environmentalists assert reintroducing predators would achieve?
The answer is the following: same end

Problem: Napoleon's set of civil laws, the Code Civilnow often known as the Napoleonic Codewas prepared by committees of legal experts under the supervision of Jean Jacques Regis de Cambaceres, the Second Consul. Napoleon participated actively in the sessions of the Council of State that revised the drafts. The development of the code was a fundamental change in the nature of the civil law legal system with its stress on clearly written and accessible law. Other codes ("Les cinq codes") were commissioned by Napoleon to codify criminal and commerce law; a Code of Criminal Instruction was published, which enacted rules of due process.
What is the Code Civil frequently referred to as now?
The answer is the following: the Napoleonic Code

Problem: Present-day Christian religious bodies known for conducting their worship services without musical accompaniment include some Presbyterian churches devoted to the regulative principle of worship, Old Regular Baptists, Primitive Baptists, Plymouth Brethren, Churches of Christ, the Old German Baptist Brethren, Doukhobors the Byzantine Rite and the Amish, Old Order Mennonites and Conservative Mennonites. Certain high church services and other musical events in liturgical churches (such as the Roman Catholic Mass and the Lutheran Divine Service) may be a cappella, a practice remaining from apostolic times. Many Mennonites also conduct some or all of their services without instruments. Sacred Harp, a type of folk music, is an a cappella style of religious singing with shape notes, usually sung at singing conventions.
What is the name of the religious a cappella style used with shape notes?
The answer is the following:
Sacred Harp