Water Resources and Environmental Issues

The video discusses the water resources of the Philippines, including rainfall, surface water, and groundwater. It explains the concepts of river basins and watersheds, highlighting the country's numerous lakes and extensive groundwater reservoirs. The video also addresses water pollution, its types, and its detrimental effects on health and the environment. It emphasizes the challenges faced by coastal areas due to untreated wastewater and tourism-related pollution.

What are the primary sources of water supply in the Philippines?

• Surface water, desalination, and recycled water

• Rainfall, surface water, and groundwater

• Groundwater, imported water, and desalination

• Desalination, imported water, and rainwater harvesting

What is the main difference between a river basin and a watershed?

• A river basin is larger and drains to a large river, while a watershed is smaller and drains to a smaller water body.

• A watershed is larger and drains to a large river, while a river basin is smaller and drains to a smaller water body.

• Both terms refer to the same geographical feature.

• A river basin is found only in tropical regions, while a watershed is found in temperate regions.

Which is the largest lake in the Philippines?

• Lake Taal

• Laguna Lake

• Lake Sebu

• Lake Lanao

How is groundwater in the Philippines primarily recharged?

• Through imported water

• Through artificial reservoirs

• By rain and seepage from rivers and lakes

• By desalination plants

What is the total available freshwater resource in the Philippines per year?

• 50,000 million cubic meters

• 100,000 million cubic meters

• 200,000 million cubic meters

• 145,900 million cubic meters

What is water pollution?

• The process of cleaning water for safe consumption

• The natural purification of water through the water cycle

• Any change in water quality that has a harmful effect on living organisms or makes water unsuitable for desired uses

• The addition of minerals to water to improve its quality

What percentage of the Philippines' population lives along coastal areas?

• 40%

• 70%

• 50%

• 60%

What is a major environmental issue caused by beach tourism in the Philippines?

• Decreased rainfall

• Improved water quality

• Increased fish population

• Beach erosion and pollution

What percentage of groundwater intended for drinking is contaminated with total coliform?

• 78%

• 58%

• 48%

• 68%

What percentage of illnesses over a five-year period were from water-related diseases?

• 41%

• 21%

• 51%

• 31%