We can make energy use more sustainable by using energy more efficiently and relying on a mix of renewable energy sources.
Answer the following statement true (T) or false (F)
True
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The proper functioning of nuclear reactors depends on a self-sustaining chain reaction from which vast amounts of energy are released.
Answer the following statement true (T) or false (F)
Radon (Rn, atomic #86 ) is a radioactive noble gas. Helium (He, atomic number 10 ) is a non-radioactive noble gas. Both are continually emitted from the surface of Earth. Which has a greater tendency to settle into the basements of homes and why?
What will be an ideal response?
________ refers to sand grain movement in a series of short leaps or bounces off the bottom.
A. Hopping B. Saltation C. Vaulting D. Floating E. Jumping
The Environmental Protection Agency administers the ____________________ that sets the standards for allowed levels of key water pollutants.
Fill in the blank(s) with the appropriate word(s).