What is used at Cognito Farm to control fly larvae in the pasture?

a. ultraviolet radiation
b. all natural organic pesticides
c. chickens
d. insect traps
e. chemical pesticides


Answer: c. chickens

Environmental & Atmospheric Sciences

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A _______ develops along a streambed containing bedrock of differential resistance

a - fault b - scree c - knickpoint d - distributary e - water gap

Environmental & Atmospheric Sciences

Which of the following is a correct example of global warming creating a negative feedback?

A. Ice has a lower albedo than water so replacing ice with water causes the surface to warm. B. More water evaporating will create more low level clouds causing the surface to cool. C. Ice has a higher albedo than water so replacing ice with water causes the surface to warm. D. Less water evaporating will create more low level clouds causing the surface to warm.

Environmental & Atmospheric Sciences

Which of the following is not a heterocyclic aromatic amine?

A) piperidine B) purine C) pyrimidine D) pyridine

Environmental & Atmospheric Sciences

Radiocarbon dating is useful in dating an event that occurred in the past ________ years.

A. 400 thousand B. 40 thousand C. 4 thousand D. 40 million E. 4 million

Environmental & Atmospheric Sciences