1  2  3  4 

1  _  _  _  _

2  _  _  _  _

3  _  _  _  _

4  _  _  _  _


ACROSS
1)  a blow from a flat object (as an open hand)
2)  the dressed skin of an animal (especially a large animal)
3)  the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics
4)  an enclosed armored military vehicle; has a cannon and moves on caterpillar treads


DOWN
1)  move so that an opening or passage is obstructed; make ____
2)  the basic unit of money on malta; equal to 100 cents
3)  an important port of yemen; located on the gulf of ____; its strategic location has made it a major trading center of southern arabia since ancient times
4)  the most extreme possible amount or value

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