Disasters, Climate Change & Resource Use

The Kedarnath floods in June 2013 were primarily caused by an extreme weather event characterized by incessant rains combined with the rapid melting of snow from the Chorabari glacial lake. The heavy rainfall led to a sudden increase in water levels, overwhelming the region's drainage capacity. Additionally, the rupture of the glacial lake released a massive volume of water, exacerbating the flooding and resulting in widespread destruction. This combination of factors created a catastrophic situation that the area was ill-prepared to handle.

Disasters tend to have a more significant impact in areas where there is a high concentration of people and inadequate infrastructure. Dense populations can amplify the effects of disasters, as more individuals are at risk and resources may be overwhelmed. Unplanned urban development often lacks the necessary safety measures and emergency response systems, making these regions particularly vulnerable. Therefore, the interaction of high population density and poor planning creates conditions that exacerbate the severity of disasters, leading to greater damage and loss of life.

The 2005 Mumbai floods were a result of multiple interrelated factors. Heavy rainfall overwhelmed the city's drainage systems, which were inadequate to handle such extreme weather. Additionally, illegal construction obstructed natural water flow and reduced the city's ability to absorb rainwater. The depletion of mangroves, which act as natural barriers against flooding, further exacerbated the situation. Together, these elements created a perfect storm, leading to severe flooding and significant damage across the city.

Climate change due to global warming has multifaceted effects on the environment. The rise in sea levels results from melting ice caps, leading to loss of land in coastal areas. Additionally, the melting of glaciers can cause excessive water flow, resulting in floods. Furthermore, altered climate conditions affect rainfall patterns, which can lead to both droughts and floods in various regions. Collectively, these factors illustrate the comprehensive impact of climate change, making "All of the above" the most accurate choice.

Excessive use of surface and underground water can deplete water resources faster than they can be naturally replenished. This over-extraction reduces the water table and diminishes river flows, leading to a scarcity of water in the environment. As a result, areas that rely on these water sources can experience drought conditions, characterized by reduced soil moisture, lower crop yields, and increased vulnerability to dry spells. Ultimately, the imbalance created by excessive water use disrupts the natural hydrological cycle, contributing to prolonged periods of drought.

Tropical cyclones have intensified in the Sundarbans due to climate change, rising sea levels, and increased ocean temperatures. These factors contribute to more frequent and severe storms, leading to heightened coastal flooding. The region's unique geography, characterized by low-lying areas and dense mangrove forests, makes it particularly vulnerable to the impacts of these cyclones. As a result, communities in the Sundarbans face annual flooding events, disrupting lives and ecosystems. This trend underscores the urgent need for adaptive strategies to mitigate the effects of climate change in vulnerable coastal regions.

Inefficient drainage systems primarily relate to water management and do not directly cause the over-utilization of natural resources like minerals, forests, or water bodies. Over mining, illegal mining, over-exploitation of forests, and overuse of surface and groundwater directly involve the excessive extraction or consumption of these resources, leading to depletion. In contrast, inefficient drainage may result in waterlogging or flooding but does not inherently lead to the overuse of resources in the same manner as the other options listed.