Physics
The absorption of ink by blotting paper involves:

Diffusion of ink through the blotting
Siphon action
Capillary action phenomenon
Viscosity of ink

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Physics
Thermohaline circulation is mainly due to

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

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