MCQs - 2026-04

The report emphasizes that the growing water crisis is a result of multiple factors, including inefficient water use, pollution, and the accelerating effects of climate change.

While population growth, unsustainable practices, and climate change contribute to water stress, increased efficiency in industrial water use would generally alleviate, not exacerbate, the problem.

Agriculture is the largest consumer of freshwater globally, accounting for approximately 70% of total withdrawals, primarily for irrigation.

The UN report projects that by 2030, nearly half (approximately 50%) of the global population may face severe water scarcity for at least some part of the year.

Deforestation leads to the release of carbon, not an increase in atmospheric oxygen. In fact, the Amazon is a major producer of oxygen, and its loss would reduce this capacity.

Deforestation in the Amazon releases stored carbon, exacerbating climate change, and leads to the extinction of numerous species due to habitat destruction.

Reports indicate that factors such as weakened environmental regulations in some areas and a growing global demand for agricultural products are contributing to the rise in deforestation.

The Amazon acts as a massive carbon sink, storing billions of tons of carbon. Its transpiration also influences regional and global rainfall patterns.

The vast majority of deforestation in the Amazon is driven by the clearing of land for cattle ranching and the cultivation of soy, which are major global commodities.

While green hydrogen can be used for power generation and potentially some forms of transportation and industrial processes, its direct application for widespread residential heating and cooking is less common compared to other cleaner alternatives like electricity or biogas.