The figure below represents the scattering of sunlight by an air molecule. The group of rays labelled B is scattered light. Which of the following groups of rays is the most intense beam of light?
A. group A
B. group B
C. group C
Answer: C
Environmental & Atmospheric Sciences
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Which of the following particles made up the dust that gave the Dustbowl its name?
a. suspended grains b. permanent grains c. bouncing grains d. rolling grains
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What lies at the root of the conflicts in the Sudan?
A) religion B) migration patterns C) oil D) water resources E) ethnic diversity
Environmental & Atmospheric Sciences
Coral reefs contain about ________ as much algal biomass as animal biomass
A) four times B) half C) one fourth D) three times E) twice
Environmental & Atmospheric Sciences