Examlex
A null hypothesis makes a claim about a __________.
Atmosphere
The layer of gases surrounding Earth, protecting it from extreme temperatures and harmful space energies.
Gaseous Layer
A stratum of the atmosphere composed of gases, such as the ozone layer, which provides protection from the sun's harmful ultraviolet radiation.
Planet
A celestial body orbiting a star or stellar remnant, with sufficient mass for self-gravity and a clear path in its orbit.
Insect Family
A classification level within the scientific taxonomy of insects, grouping together species that share common characteristics and evolutionary ancestors.
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