Examlex
It is increasingly clear that technological change is the only explanation for an expanding wage gap between high-skill and low-skill workers.
Levels of Organization
The hierarchical structure in biology that ranges from the simplest (atoms, cells) to the most complex (organisms, ecosystems) forms of matter and life.
Matter
Anything that has mass and occupies space, consisting of atoms and molecules and classified into solid, liquid, gas, and plasma states.
Nature
The observable aspects of the Earth, embracing plants, animals, the terrain, and other natural elements and substances, distinguished from the realm of human beings and their inventions.
Hydrosphere
The total amount of water on a planet, including oceans, seas, lakes, rivers, and water in the atmosphere.
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