Physics
The cooling by a desert Cooler is based on:

Evaporative Cooling
Air dehydration
Hot air replacement
Air Rehydration

ANSWER DOWNLOAD EXAMIANS APP

Physics
Mirage is due to:

Equal heating of different parts of the atmosphere
Magnetic disturbances in the atmosphere
Depletion of ozone layer in the atmosphere
Unequal heating of different parts of the atmosphere

ANSWER DOWNLOAD EXAMIANS APP