Evaporative cooler are primarily used in climate where the summer are hot and dry
The evaporative cooler help to keep the home cool and comfortable during warm month example during hot and dry climatic condition. The evaporative cooler device cool air throught the evaporation of water. This device differ from typical air condition system which uses vapor compression or absorption refrigeration.
if this is multiple choice you could try shape and movement
Earth has seasons because its axis is tilted.