Which theory was contradicted by experiments with the photoelectric effect? A) Light spreads out after it passes through a small opening.
B) As soon as light strikes metal, electrons will be ejected.
C) Visible light, regardless of color, will cause the ejection of electrons when striking metal.
D) The kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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