Examlex
Which stars always have large positive absolute magnitude?
Million Years
A unit of time equal to one thousand thousand years, often used to express geological and cosmological time scales.
Definite
Clearly stated, decided, or defined; not vague or ambiguous.
Dietary Challenge
A specific difficulty or obstacle that an individual or group faces in meeting their nutritional needs or preferences.
Savannahs
Grassland ecosystems characterized by scattered trees, found in tropical and subtropical regions, providing habitat for diverse fauna.
Q10: Absorption lines due to interstellar gas<br>A) are
Q15: Energy can flow outward from the cores
Q36: Early in the history of the universe,assume
Q41: If the size of the Sun is
Q47: The hot spots in the double-lobed radio
Q48: The sun moves _ along the ecliptic
Q53: What is the energy of the photon
Q55: Sunspots are known to be magnetic phenomena
Q59: What is the approximate latitude of
Q60: Chromatic aberration occurs in a _ telescope