Examlex
When the isotope bismuth-213 emits an alpha particle,what new element results?
Astronomy
The scientific study of celestial bodies such as stars, planets, comets, and galaxies.
Topic Sentence
A sentence that captures the main idea of a paragraph, serving to organize and unify its content.
Global Disasters
Catastrophic events with widespread impacts that affect large portions of the world, such as pandemics, climate change-induced phenomena, or economic crises.
Hazardous Wastes
Waste materials that are dangerous or potentially harmful to human health or the environment, requiring special handling and disposal.
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