What is a Biological Disaster? Let’s begin with a simple question —What happens when diseases spread uncontrollably, affecting not just humans, but also animals and plants? That scenario is called a Biological Disaster. 👉 Definition: A biological disaster is a situation where disease, disability, or death occurs on a large scale among humans, animals, or…
While natural hazards arise from environmental and geological processes, anthropogenic or human-induced disasters result from technological failures, human negligence, mismanagement, or sociopolitical causes. These events often have far-reaching and long-lasting impacts because they occur in densely populated or industrialized areas and involve hazardous substances or chaotic crowd situations. Such disasters include biological outbreaks, industrial and…
🔥 What is a Wildfire? A wildfire is an uncontrolled combustion that rapidly spreads through vegetation (forest, grassland, or scrubland), consuming large areas.While small fires are natural and help in forest regeneration, uncontrolled fires cause enormous ecological and economic loss. 🔹 Forest fires are nature’s way of recycling — but human interference turns them into…
🧭 Definition A cold wave is a marked drop in temperature over a large area, caused by the advection (horizontal movement) of very cold air masses from higher latitudes into lower latitudes.It is often accompanied by frost, fog, or strong winds — leading to physiological stress, crop damage, and sometimes death. According to IMD: 🌀…
A Heat Wave is a period of abnormally high temperatures that causes physiological stress and can lead to illness or death. It is a climatic extreme, increasingly frequent in India due to global warming and urban heat island effect. 🔥 How a Heat Wave Forms Let’s visualise it scientifically and simply: 1️⃣ A ridge of…
Let’s begin with the basic idea. A drought is a prolonged period of abnormal deficiency of water, mainly due to below-normal rainfall, that leads to shortage of water for agriculture, drinking, and industrial purposes. Unlike floods or cyclones, a drought does not occur suddenly — it is a slow-onset disaster.It develops gradually over months or…
Let’s start from the definition — A Cyclone is a large-scale low-pressure system surrounded by high-pressure zones, causing swirling winds around the center. In simple words —👉 Air rushes inward towards a low-pressure center.👉 Because of Coriolis Force, it starts rotating: At the center lies the eye of the cyclone — calm, clear, and almost…
Let’s begin with the definition. A cloudburst is an extremely intense rainfall event occurring over a localized area (20–30 sq km) at a very high rate (≥10 cm/hour).It is one of the most devastating short-duration weather phenomena and often leads to flash floods and landslides. In simple terms, it’s like the cloud suddenly “bursting open”…
Let’s begin simply.A landslide is nothing but the movement of rock, debris, or soil down a slope under the force of gravity. In geography terms, it is part of “mass wasting”, which includes all down-slope movements driven primarily by gravity — like soil creep, slumping, rock falls, and avalanches. 🧭 Why are landslides common in…
Let’s begin with a simple definition. A flood occurs when water overflows its normal limits — whether it’s a river, lake, or sea — and inundates adjoining land areas. In simple terms, a flood is when too much water appears at the wrong place and time. India is highly vulnerable to floods.According to Rashtriya Barh…
