What is the main tenet of Plank's quantum hypothesis?
A) Energy comes in discrete packets of a certain minimum size.
B) Energy is composed of subatomic particles called quanta.
C) Energy is a continuum, but light is quantized.
D) Energy can be converted into matter through nuclear quanta.
E) Light is composed of waves that exist only at certain quantum fundamental frequencies.
A
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The "Golden Triangle", where several countries meet is a major source of opium and amphetamine production. All of the countries below meet in this area except:
A. China B. Thailand C. Malaysia D. Laos
Which statement about John Joly's salty ocean theory to calculate Earth's age is false?
A) John Joly's theory gives a more accurate estimate of Earth's age now that more accurate observational data is available. B) Joly believed that the ocean began as a salty body of water and that salt entered it from rock sources at a steady rate. C) Joly's method was less accurate than Kelvin's. D) Joly underestimated the amount of precipitated rock salt in the world.
In ecology, a ________ is made up of interacting populations of different species that inhabit the same area
A) guild B) biome C) community D) ecosystem E) population
The latitude of the upper right (northeast) corner of the map is 35°30' N, while the longitude of the lower left (southwest) corner of the map is 110°00' W. Why is this called a “7.5 minute” topographic map? (Hint: What is “minute” referring to?)
The question is based on the lower right (southeast) corner of the “Greasewood Spring, Arizona,” quadrangle (Maps T-18 and T-19 shown in color in the back of the Lab Manual). What will be an ideal response?