Which of the following was NOT a tactic used in the Mongol conquests? A. Terror.
B. Islam as a unifying religion.
C. Using prisoners as decoy soldiers.
D. Captured enemy engineers and craftsmen to design new weapons

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath. 

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