Physics
The spring balance works on the principle of ________ .

Pascal's Law
Bernoulli's principle
Boyle's Law
Hooke's Law

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Physics
Thermohaline circulation is mainly due to

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

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