How many unpaired electrons are there in an oxygen atom in its ground state?

A) 1
B) 2
C) 4
D) 8


B

Environmental & Atmospheric Sciences

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Rivers start to overflow the banks of rivers in the ________ flood stage.

A. moderate B. action C. minor D. major E. levee

Environmental & Atmospheric Sciences

The nighttime counterpart of the sea breeze circulation is called

a. ?Chinook. b. ?Santa Ana. c. ?land breeze. d. ?a night breeze. e. ?foehn.

Environmental & Atmospheric Sciences

Use the data shown to determine recurrence intervals for the river. This river has had 39 floods over the past 100 years. What is the recurrence interval for the 10th ranked flood?

A. 5 B. 3 C. 4

Environmental & Atmospheric Sciences

Which one of the following is not true about physical weathering?

a) produces smaller pieces b) adds to the effectiveness of chemical weathering c) may lead to the formation of talus slopes d) does not change the rock's mineral composition e) does not affect metamorphic rocks

Environmental & Atmospheric Sciences