Examlex
Give a specific example of a historical impact of an asteroid or comet that hit Earth.Why are impact craters rare on the surface of Earth but plentiful on the Moon?
Steam Engine
A heat engine that performs mechanical work using steam as its working fluid, playing a crucial role in the Industrial Revolution by powering factories, trains, and ships.
Regressive Social Movements
Movements aiming to reverse social progress or return to previous societal conditions.
Reactionary
A political viewpoint characterized by opposition to progress or change and aiming to return to a previous state or condition.
Environmental Protection
A practice of safeguarding the natural environment on individual, organizational, or governmental levels, for the benefit of both the environment and humans.
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