1  2  3  4 

1  _  _  _  _

2  _  _  _  _

3  _  _  _  _

4  _  _  _  _


ACROSS
1)  complex system of paths or tunnels in which it is easy to get lost
2)  an independent ruler or chieftain (especially in africa or arabia)
3)  tropical american prickly pear of jamaica
4)  a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter


DOWN
1)  a line that indicates a boundary
2)  an asian river between china and russia; flows into the sea of okhotsk
3)  a brief high-pitched buz____ or humming sound
4)  a period marked by distinctive character or reckoned from a fixed point or event

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