[blake]

vertical axis, if the price level is above... the equilibrium level, there is a:

a. shortage, so the price level will rise.
b. shortage, so the price level will fall.
c. surplus, so the price level will rise.
d. surplus, so the price level will fall

[bvgopinath2001]

Please for God's sake dont ask such questions. Please study physics or chemistry to know what is equilibrium. When hot water is added to cold water, heat moves from hot water (from higher temperature) to cold water (to lower temperature) and equilibrium i.e. equalization of levels of heat (temperature) takes place. Similarly when a tube of a vehicle bursts, air moves out of the tube (from higher density to lower density).
Similarly when two markets of different concentration of wealth are mixed i.e. brought under viscinity to react, wealth moves from higher concentration to lower concentration. Immediately equilibrium has to result. Remember that price is not wealth but price is level of wealth. Please remember the example of hot water. Heat is wealth and temperature is price. Money or buyers move from costlier markets to chepaer markets and goods move from cheaper to costlier markets till price levels at both the markets become equal. If in this example price is high, many players enter the market and price will be brought down.