Physics
Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

Pressure and Young's modules
Planck's constant and Angular momentum
Impulse and moment of force
Force and rate of change of linear momentum

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Physics
Thermohaline circulation is mainly due to

Cold, dense ocean water sinking and warmer water replacing it
Warm water being added to the ocean due to industial waste
Winds causing circulation of ocean water
Warmer, less dense water sinking in the ocean and cold water replacing it

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