The concentration of Silicate in the deep water of the Pacific Ocean is greater than that in the deep water of the Atlantic Ocean.
a. true
b. false
Answer: a. true
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An element found in another galaxy exists as two isotopes. If 80.0% of the atoms have an atomic mass of 80.00 atomic mass units and the other 20.0% have an atomic mass of 82.00 atomic mass units, what is the atomic mass of the element?
A. 64.0 atomic mass units B. 80.4 atomic mass units C. 81.6 atomic mass units D. 16.4 atomic mass units E. 81.0 atomic mass units
Which of the following is the speed of light?
A) 3.0 x 10^8 cm/sec B) 3.0 x 10^8 m/sec C) 3.0 x 10^8 mi/sec D) 3.0 x 10^8 mi/hour
A soil that is 40% sand, 40% silt, and 20% clay is classified as
A) loam. B) silt loam. C) silty clay. D) clay loam.
The average distance from Earth to the Sun is called the ________ unit
Fill in the blank(s) with correct word