What is a characteristic of all fuel cells?
the
energy from the sun is converted into electricity.
electrical energy is produced from oxidation reactions.
oxidation reactions are used to produce thermal energy.
a constant source of energy itt not required.

Which situation would most likely be checked by other branches of the government? a) the judiciary tries to declare a state of emergency. b) the president tries to declare himself commander in chief. eliminate c) the supreme court tries to declare a law unconstitutional. d) the legislative branch tries to declare war on another country.