Examlex
Helium fusion does not begin until the star has entered the giant region of the H-R diagram.
Spray Cans
Aerosol containers that dispense liquid material as a fine spray, commonly used for products like paint, deodorant, or insecticide.
Air Conditioners
Devices designed to remove heat and humidity from an interior space, improving comfort and air quality.
CFCs
Chlorofluorocarbons, man-made chemical compounds used in aerosols, cooling devices, and as solvents, which have been found to deplete the ozone layer.
Q10: The average star spends _ of its
Q25: The above image of the Sun is
Q28: The high _ of quasars reveals to
Q33: If a galaxy has a radial
Q39: A pulsar wind is nearly entirely electromagnetic
Q40: Most stars on the H-R diagram are
Q69: The center of our galaxy lies in
Q70: If in every direction we point to
Q109: A white dwarf is composed of<br>A)hydrogen nuclei
Q112: _ are star-like objects that contain less