Which of these is an example of nonpoint-source pollution?
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A. Exhaust is emitted during rush hour in a city,
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B. Loud music comes from a concert in the city.
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C. Smoke is emitted from a factory smokestack.
D. Bright light is emitted from a street lamp.

Please I need help!!

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

How does science influence the decisions made about social, economic, and political issues?

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.