An infectious disease

A. is the result of a pandemic.
B. always becomes an epidemic.
C. is caused by a pathogen.
D. cannot be caused by a pathogen.
E. is a type of chemical hazard.


Answer: C

Environmental & Atmospheric Sciences

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You are hiking in a delta environment. The sediment that you see under your feet is

A. composed of grains of many sizes. B. coarse-grained. C. fine-grained. D. medium-grained.

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What is different between quartz and quartzite's formation processes?

A) Quartz is metamorphosed into quartzite. B) Quartzite is formed in volcanoes. C) Quartzite is heavily foliated, a result of forming deep within the earth. D) Chemicals change quartzite's makeup extensively.

Environmental & Atmospheric Sciences

The warmest temperatures are typically found:

A) in equatorial regions. B) in subequatorial regions. C) in temperate latitudes. D) near oceans.

Environmental & Atmospheric Sciences

Mesoscale circulations have a(n) ____________________ (longer/shorter) duration than microscale circulations

Fill in the blank with correct word.

Environmental & Atmospheric Sciences