Most fish need a minimum of ________ parts per million of dissolved oxygen in seawater to survive for long periods
A) 0.4
B) 4
C) 40
D) 400
E) 4,000
B
Environmental & Atmospheric Sciences
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What sedimentary rock is composed of the most abundant product of chemical weathering?
a) sandstone b) shale c) limestone d) conglomerate e) breccia
Environmental & Atmospheric Sciences
According to a 2015 EPA report, between 1980 and 2014, the combined emissions of the six major outdoor air pollutants decreased by ____.
A. 17 B. 23 C. 36 D. 49 E. 70
Environmental & Atmospheric Sciences
The area of Africa is approximately 11.7 million square miles. Which of the following is the correct way to express this number in scientific notation?
A) 1.17 x 10^5 B) 1.17 x 10^6 C) 1.17 x 10^7 D) none of these
Environmental & Atmospheric Sciences
Orogenies are associated with ________.
A. transform plate boundaries B. divergent plate boundaries C. convergent plate boundaries
Environmental & Atmospheric Sciences