The majority of dark matter is probably not protons and neutrons
Indicate whether the statement is true or false
TRUE
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Which of the following can act like a long-term "thermostat" for the Earth's average temperature?
A) heat stored in the Earth's magnetosphere B) the carbon dioxide cycle C) radioactive elements trapped in the Earth's mantle D) heat stored in the Earth's liquid core
Addition of an electron to an atom gives a
a. negative ion. b. neutron. c. new element. d. positive ion.
How many degrees separate the central meridians that each time zone is based on?
What will be an ideal response?
Can the lines in the figure below be equipotential lines?
a.
No, because there are sharp corners.
b.
No, because they are isolated lines.
c.
Yes, because any lines within a charge distribution are equipotential lines.
d.
Yes, they might be boundary lines of the two surfaces of a conductor.
e.
It is not possible to say without further information.