Problem: Pesticide:

The first legislation providing federal authority for regulating pesticides was enacted in 1910; however, decades later during the 1940s manufacturers began to produce large amounts of synthetic pesticides and their use became widespread. Some sources consider the 1940s and 1950s to have been the start of the "pesticide era." Although the U.S. Environmental Protection Agency was established in 1970 and amendments to the pesticide law in 1972, pesticide use has increased 50-fold since 1950 and 2.3 million tonnes (2.5 million short tons) of industrial pesticides are now[when?] used each year. Seventy-five percent of all pesticides in the world are used in developed countries, but use in developing countries is increasing. A study of USA pesticide use trends through 1997 was published in 2003 by the National Science Foundation's Center for Integrated Pest Management.

What were laws first created to regulate in 1940?
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A: unanswerable

Problem: Identity (social science):

Although the self is distinct from identity, the literature of self-psychology can offer some insight into how identity is maintained (Cote & Levin 2002, p. 24). From the vantage point of self-psychology, there are two areas of interest: the processes by which a self is formed (the "I"), and the actual content of the schemata which compose the self-concept (the "Me"). In the latter field, theorists have shown interest in relating the self-concept to self-esteem, the differences between complex and simple ways of organizing self-knowledge, and the links between those organizing principles and the processing of information (Cote & Levin 2002).

What can the literature of self-psychology offer insight into?
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A: how identity is maintained

Problem: Glacier:

Large masses, such as ice sheets or glaciers, can depress the crust of the Earth into the mantle. The depression usually totals a third of the ice sheet or glacier's thickness. After the ice sheet or glacier melts, the mantle begins to flow back to its original position, pushing the crust back up. This post-glacial rebound, which proceeds very slowly after the melting of the ice sheet or glacier, is currently occurring in measurable amounts in Scandinavia and the Great Lakes region of North America.

With what speed does post-glacial rebound occur?
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A: very slowly

Problem: Energy:

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 process is triggered by heat and pressure generated from gravitational collapse of nitrogen clouds?
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A:
unanswerable