Which of the following is the largest fresh water lake in India?

The pH value of pure water is approximately:

The ratio of land to water for the whole earth is 1 : 2 and in the Northern Hemisphere, it is 2 : 3. What is the ratio of land to water in the Southern Hemisphere?

In March 2026, which country hosted the 'Blue Economy Global Summit' to draft a legal treaty against deep-sea mining in international waters?

Which Indian scientist was awarded the March 2026 'Global Innovation Prize' for developing a low-cost graphene-based water filter?

The ratio of land to water for the whole earth is 1 : 2. In the Northern Hemisphere, it is 2 : 3. What is the ratio in the Southern Hemisphere?

The 'Jal Jeevan Mission (JJM) 2.0', approved by the Union Cabinet in March 2026, aims to provide tap water connections to all rural households by which year?

Which state became the 12th in India to sign a Memorandum of Understanding (MoU) on reforms under 'Jal Jeevan Mission (JJM) 2.0' in March 2026?

Which autonomous underwater vehicle (AUV) was showcased by India in March 2026 for deep-sea mining exploration in the Indian Ocean?

In April 2026, the 'Brahmaputra Tunnel', India's first underwater rail-road tunnel, was inaugurated. Which two places does it connect?

In April 2026, which country hosted the '4th Asia-Pacific Water Summit'?

In April 2026, which Indian project was awarded the 'National Water Innovation Prize' for large-scale desalination?

A mixture of 40 litres of milk and water contains milk and water in the ratio 3 : 1. How much water must be added to this mixture so that the ratio of milk and water becomes 2 : 1?

Regarding 'Green Hydrogen', consider the following: 1. It is produced through electrolysis of water using renewable energy. 2. India's National Green Hydrogen Mission aims to develop a production capacity of at least 5 MMT per annum by 2030. Which statement is correct?

What is the PH value of pure water at 25°C?

How many players are there in a standard Water Polo team in the water during a match?

In March 2026, the Ministry of Jal Shakti announced that which state has become the first to achieve 100% saturation in 'Grey Water Management' at the village level?

In a mixture of 45 litres, the ratio of milk and water is 4 : 1. How much water must be added to make the ratio 3 : 2?

Which gas is released when bleaching powder is added to water?

A container contains milk and water in the ratio 7:5. If 9 liters of the mixture is replaced by 9 liters of water, the ratio becomes 7:9. How many liters of milk were in the container initially?