Which of the following is a form of potential energy?
A) chemical energy
B) nuclear energy
C) both a and b
D) neither a nor b
C
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What are the primary biofuels in Sub-Saharan Africa?
A) non-renewable resources such as coal and oil that are used to power industrial operations in African factories B) a new form of synfuel that has been created to solve Sub-Saharan Africa's energy problems C) wood and charcoal used for household energy needs D) wood chips that are compacted together into log form and then sold at African markets for heating fuel E) fuels manufactured from food and lawn wastes
The speed of light is slower in water than in air
a. true b. false
The term "salinity" refers to the total quantity of ____
A) dissolved inorganic solids in water B) sodium chloride dissolved in the ocean C) chlorine in 1 kilogram of water D) chloride ions in ocean water
During a surge, a glacier moves up to 2 km/hr
Indicate whether the statement is true or false