The scientific peer-review process ensures that ________
A) all scientific studies receive publication despite the level of bias
B) the results of scientific studies are permanent and certain
C) scientific studies have proper design and methods and are free from bias
D) all published scientific studies have clearly defined control groups
C
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Which below best describes why a fluffy covering of snow is able to protect sensitive plants and
their root systems from damaging low temperatures. a. Snow is a good insulator. b. Melting snow releases latent heat. c. Snow is a good emitter of infrared energy. d. Snow is a good reflector of sunlight
Which of the following statements about the Deepwater Horizon event of 2010 is true?
A) The event affected only the deep-water marine life. B) The cleanup of the spill was relatively fast because the blowout was near the surface. C) Much of the spill was broken down by bacteria or evaporated from the water's surface. D) This was the first large-scale spill of crude oil into marine ecosystems.
When was the modern start of master-planned communities in the United States?
A. 1920s B. 1990s C. 1960s D. 1950s
A desert is an area where
A. evaporation is slow. B. average annual precipitation is low. C. most vegetation consists of grass. D. it never rains. E. only cactus plants grow.