The mono lake ecosystem is being destroyed by dropping water levels and increasing salinity because
a) there is a persistent drought
b) this water is used for irrigation
c) snowmelt is diverted to other areas
d) there is excessive evaporation

A  reaction  in which  energy  is  released  to the surroundings is called an exothermic  reaction. in this type of  reaction  the enthalpy, or stored  chemical energy, is lower for the products than the reactants. when ammonium nitrate is dissolved in water,  energyis  absorbed  and the water cools.

Empty or clean by the force of suction ( a body cavity)