Which of the following is a tropical ocean current?

The 'Water table' refers to ________

Two main cold currents in the North Pacific Ocean are known as

With reference to a fresh water lake, consider the following characteristics:
1. Richness in nutrients
2. Rapid turnover of phytoplankton
3. Depletion of dissolved oxygen
Which of the above is/are observed in a lake after its eutrophication?

With reference to Ocean currents consider the following statements:
1. West Australian current is a warm current.
2. North East Monsoon Drift flows in the Indian Ocean during winter season.
3. Equatorial counter current does not flow in the Indian Ocean during winter season.
4. Kuroshic current in the Pacific Ocean is like Gulf Stream in the Atlantic Ocean.

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