Which soil horizon contains humus?

a. A
b. B
c. C
d. D
e. O


E

Environmental & Atmospheric Sciences

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Which algae was responsible for the Lake Erie harmful algal bloom (HAB) causing our recent Toledo Water Crisis?

Anabaena Aphanizomenon Lyngbya Microcystis

Environmental & Atmospheric Sciences

How did scientists calculate the rate of uplift of the Andes?

A) using a fossil of coral from a high rock B) by radio-dating uplifted metamorphic rock C) by radio-dating uplifted sedimentary rock D) using tectonic data and knowledge of ice ages

Environmental & Atmospheric Sciences

What is the study of the balance between environmental factors and organisms in a community?

a. ecology

b. biogeochemistry c. biodiversity d. biology e. bioeconomics

Environmental & Atmospheric Sciences

The primary agent of contact metamorphism is ________

A) strain B) folding C) heat D) stress

Environmental & Atmospheric Sciences