What are the requirements for a useful guide fossil? What will be an ideal response?


A guide fossil should be easily identified, geographically widespread, and should be from an organism
that existed for a relatively short period of geologic time.

Environmental & Atmospheric Sciences

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Earth's blue sky is a result of diffuse reflection called scattering

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which of the following describes the problem known as groundwater mining?

A. falling groundwater levels due to excessive pumping B. pumping groundwater from one area and transporting it to another C. aquifer become too saline in areas of heavy irrigation D. removal of aquifer material that reduces the supply of groundwater E. using groundwater to process large ore deposits

Environmental & Atmospheric Sciences

What primarily determines the intensity of solar radiation arriving at any spot on Earth?

A. apogee B. day length C. angle of incidence D. path length E. declination

Environmental & Atmospheric Sciences

Which stage in thunderstorm formation is characterized by updrafts accompanied by downdrafts induced by falling precipitation?

A. cloud merger stage B. cumulus stage C. mature stage D. dissipating stage

Environmental & Atmospheric Sciences