Which area accounts for 80% of the world's manufacturing?
A) North America
B) Europe
C) W Russia and Ukraine
D) parts of SE Asia: Japan, South Korea and China
E) all of the above
E
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Exposure to ________ radiation can cause cancer
A) alpha B) X-ray C) beta D) All of these answers are correct.
Integration in numerical forecasting involves
A) predicting conditions in the future, and then using the results to predict even further into the future. B) ensuring fine resolution with close-spaced gridpoints. C) determining the best way to measure initial conditions. D) comparing and combining the forecast results of two or more models. E) all of the above
What is the formula weight of aluminum sulfate, Al2(SO4 ) 3?
A) 75.1 amu B) 150.2 amu C) 342.2 amu D) 369.7 amu
The mass of an atom of 12C is exactly 12 atomic mass units. Which of the following describes a mole of 12C atoms?
A) a sample which weighs exactly 12 atomic mass units B) a sample which contains 6.02 x 10^23 atoms of 12C C) both a and b D) neither a nor b