Question

Regarding cold waves, identify the correct statements from the following:

1. A cold wave can manifest as a sudden influx of very cold air across a large geographical area.
2. Cold waves are always accompanied by heavy snowfall and extreme cold, leading to immediate regional immobilization.
3. A cold wave can also be defined as a prolonged period of unusually cold weather.

• A. i, iii
• B. i മാത്രം
• C. iii
• D. i, ii

Answer 1

Answer:

A. i, iii

Cold waves represent a significant drop in temperature over a short period or a sustained period of unusually low temperatures. While heavy snowfall and extreme cold often accompany them, especially in certain regions, it is not an absolute requirement for every cold wave. The primary definitions include a rapid influx of cold air or a prolonged period of unusual cold. These events can severely impact infrastructure, agriculture, and human health, leading to risks like hypothermia, frostbite, and power outages. Governments often issue cold weather advisories during such events to ensure public safety.