If someone says that an idea is "only a theory" and implies that this means it can be dismissed, is this a valid viewpoint?


Ans: The viewpoint is incorrect because for an idea to become a theory it has withstood robust testing and is currently accepted

Environmental & Atmospheric Sciences

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Which of the following best matches the description?Process of changing the natural community to encourage the increase in populations of certain desirable species.

A. reforestation B. threatened species C. speciation D. biodiversity E. clear-cutting F. extinction G. selective harvesting H. mutation I. patchwork clear-cutting J. endangered species K. species diversity L. habitat management M. cover

Environmental & Atmospheric Sciences

Plankton are the "drifters of the sea" and include all of the following except ________.

A. phytoplankton B. nekton C. zooplankton D. bacterioplankton

Environmental & Atmospheric Sciences

This fish was thought to be extinct, but, in 1938, a living specimen was found off the coast of

Madagascar:a. ginkgo d. mosasaur b. sphenopsid e. coelacanth c. tetrapod

Environmental & Atmospheric Sciences

How is the surface water above a deep trench in the ocean floor distorted as a result of the trench?

a. Downward distortion b. Upward distortion c. Sideways distortion d. Vortex distortion e. No distortion

Environmental & Atmospheric Sciences