Like kinds of magnetic poles repel while unlike kinds of magnetic poles
A) attract.
B) repel also.
C) may attract or repel.
A
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Swahili in East Africa and Hindi in South Asia are two examples of lingua francas
Indicate whether the statement is true or false.
What elemental compound comprises up to 95% of the mass of a diatom's cell wall?
a. silica (SiO2) b. calcium carbonate c. magnesium carbonate d. calcium sulfate e. sodium bicarbonate
The three largest language families in Southeast Asia are
A) Dravidian, Altaic, and Tai-Kadal. B) Austronesian, Austro-Asiatic, and Tai-Kadal. C) Austronesian, Afro-Asiatic, and Uralic. D) Korean, Japanese, and Austronesia. E) Indo-Iranian, Celtic, and Austronesia.
What is the minimum number of points needed to pinpoint the epicenter location of an earthquake, using the radius of a circle of possible points, as obtained from the lag time in arrival between a P wave and an S wave?
A) 2 B) 3 C) 4 D) 5 E) 6