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 '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?

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?

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?

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, 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?

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

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?

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

In April 2026, which country hosted the '10th World Water Forum', focusing on 'Water for Shared Prosperity'?

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?

In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?