Answer:
The Pasig River is technically a tidal estuary, as the flow direction depends upon the water level difference between Manila Bay and Laguna de Bay. During the dry season, the water level in Laguna de Bay is low with the river's flow direction dependent on the tides. During the wet season, when the water level of Laguna de Bay is high, the flow is reversed towards Manila Bay. Due to negligence and industrial development, the river has become very polluted and is considered biologically dead by ecologists The Pasig River Rehabilitation Commission (PRRC). which was established to oversee rehabilitation efforts for the river, is supported by private sector organisations such as the Clean and Green Foundation, Inc. that introduced the Piso para sa Pasig Campaign in the 1990s.
Explanation:
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