Which of the following is not a common cation that acts as a nutrient for plants?

A. sodium
B. nitrogen
C. magnesium
D. potassium


Answer: B

Environmental & Atmospheric Sciences

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Historic sectors of Northern Africn cities, valued for their social fabric, are called _____________.

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

Why are most fossils found in sedimentary rock, rather than in igneous or metamorphic rocks? What will be an ideal response?

Environmental & Atmospheric Sciences

Activities to limit the production of hazardous waste involve all of the activities EXCEPT:

A. paying a company to haul your waste to a landfill. B. allowing bacteria to break down organic waste in a pond. C. selling waste oil to a company that burns it for heat. D. educating employees about how to correctly label and store hazardous materials and hazardous waste.

Environmental & Atmospheric Sciences

Which ocean basin is the largest?

A. Pacific B. Arctic C. Indian D. Atlantic E. None of these is correct.

Environmental & Atmospheric Sciences