Which of the following statements is true of nuclear fission?
A) The mass of the products is greater than the mass of the reactants, and energy is absorbed.
B) The mass of the products is greater than the mass of the reactants, and energy is released.
C) The mass of the products is less than the mass of the reactants, and energy is absorbed.
D) The mass of the products is less than the mass of the reactants, and energy is released.
D
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Seismic waves carry energy through the Earth, but where does the energy in seismic waves come from
a. Gravity b. Radioactivity. c. It comes from the potential energy stored in compressed rock held in place through friction. d. The heat energy inside Earth is converted to the energy carried by seismic waves.
As energy disperses in a system it ultimately becomes
A. kinetic energy of its particles. B. thermal energy. C. potential energy. D. none of the above
Which of the following is the name for an abrupt change in wind speed or wind direction?
A. an air pocket B. squall C. wind shear D. flurry
Why do coral reefs at the ocean surface grow away from seamounts over time?
a) Seamounts uplift as tectonic plates move. Coral reefs grow away from the seamount in order to stay in the ocean water. b) Seamounts subside as tectonic plates move. Coral reefs grow away from the seamount in order to stay near the sunlight. c) Seamounts subside as tectonic plates move. Coral reefs grow away from the seamount in order to stay in the ocean water. d) Seamounts uplift as tectonic plates move. Coral reefs grow away from the seamount in order to stay near the sunlight.