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

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

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

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 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 Indian city operationalized the 'Smart Water Grid' that reduces water leakage by 40% using IoT sensors?

In March 2026, which global body released the 'World Water Risk Atlas 2.0', identifying 25 Indian cities facing extreme water stress by 2040?

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 Indian project won the 'Global Infrastructure Excellence Award' for its underwater tunnel system?

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

In March 2026, which Indian institute developed 'Indi-Graphene', a low-cost graphene-based water filter capable of removing 99% of microplastics?

The pH value of pure water is approximately:

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?

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 'UN High Seas Treaty' (BBNJ), finalized in 2023 and entering implementation phases in 2026, focuses on: 1. Establishing Marine Protected Areas (MPAs) in international waters. 2. Fair sharing of benefits from Marine Genetic Resources (MGR). Which of the above is/are correct?

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?

In March 2026, which country signed a 'Blue-Economy Treaty' with India to share expertise in lithium extraction from seawater?

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?