Examlex
Main sequence stars are fusing hydrogen into helium in their cores.
Cultural Values
The core principles and ideals upon which an entire community exists and functions, influencing behavior, traditions, and beliefs.
Lay-away
A purchasing arrangement where the buyer pays for a product in installments and receives the item once the full price has been paid, offering a way to secure items without immediate full payment or credit.
Appliance Maintenance
The regular and routine actions taken to keep an appliance in optimal working condition, including cleaning and repairs.
Official Languages
Languages that are given a special legal status in a particular country, state, or jurisdiction for government and public communication.
Q2: Kepler found the orbits of planets are
Q21: In general, what can be said about
Q31: Extra mass dumped on a white dwarf
Q39: Name four ways that the interstellar medium
Q51: Fewer than 100 stars lie within 5
Q51: Sirius has a parallax of 0.38", while
Q67: What is meant by the astronomical unit?
Q69: A solar eclipse can only happen during
Q143: If a star has a parallax of
Q156: Type II supernovae occur when their cores