There has been near zero net migration of Mexicans into the U.S. between2010-2015
a. True
b. False
Indicate whether the statement is true or false
True
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Describe the formation processes of four types of fog
What will be an ideal response?
All of the following are secondary energy sources except ________
A) coal B) gasoline C) electricity D) batteries
Which of the following is true of a buffer prepared with equal concentrations of an acid and its conjugate base?
A) The buffer capacity depends on the concentration of the acid and base B) The pH depends on the concentration of the buffer C) both a and b D) neither a nor b
Which of the following statements best describes how this object may have formed?
A. Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen. B. A supernova exploded, probably from the late-stage evolution of a high-mass star. C. A star ejected its outer envelope of gas and plasma. D. Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation.