What is permafrost?

A. frozen surface dew
B. frost in the dirt
C. wintertime soil freeze
D. chunks of ice
E. permanent frozen subsoil


E

Environmental & Atmospheric Sciences

You might also like to view...

In what British colony were the indigenous aborigines almost eradicated, and eventually turned into a penal colony?

A) Australia B) Burma C) Hong Kong D) Malaysia E) Singapore

Environmental & Atmospheric Sciences

A representative fraction (RF) scale on a map must be expressed in terms of some unit of measurement

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Animals that are harmed by human modification of the environment tend to have all of the following characteristics EXCEPT ________

A) being a dietary generalist B) being high on the food chain C) being a habitat specialist D) being K-selected E) being a species covering a small geographic range

Environmental & Atmospheric Sciences

In general, microbial agents are

A. Persistent in the soil for a long time B. Small molecules that penetrate rapidly into a variety of materials C. Small molecules that gasify easily D. Used in place of chemical pesticides E. Wide spectrum agents

Environmental & Atmospheric Sciences