Question

No rainfall for a year or more may lead to ________ in that region.

Answer 1

Hint: When there will be less or no rainfall in a certain region, there will be shortage of water in that region which can lead to difficulty to survive since water is the most essential thing on which everyone depends.

Complete answer:
No rainfall for a year or more may lead to drought in that region. A drought is described as a time of drier-than-normal weather that causes water-related issues. Rain and snow fall in a variety of patterns throughout the world. The amount of precipitation at a given location varies from year to year, but the average amount remains reasonably constant over time.

Soils can dry out and plants can die when there is little to no rain. The flow of streams and rivers decreases, water levels in lakes and reservoirs drops, and the depth of water in wells increases when rainfall is less than average for several weeks, months, or years. If the dry weather continues and water availability issues arise, the dry spell could turn into a drought.

Greenhouse gas emissions trap heat, causing air temperatures to rise in a vicious cycle. Since hot air retains more moisture, less rain falls. Evaporation from lakes and rivers is increased by hotter air, reducing water supplies. Reduced rainfall destroys the plants that usually keep moisture in the soil moist, making the situation even drier.

The amount of water in the aquifer that feeds a well does not always remain constant. The height of the underground water levels is affected by droughts, seasonal fluctuations in rainfall, and pumping. Water levels in a well can be reduced if it is drained faster than the aquifer surrounding it is recharged by precipitation or other underground flow. This can happen during a drought when there is a severe lack of rain.

Note: Drought conditions do not always follow a time of below-normal rainfall. When water evaporates from water surfaces and wet soil, some rain returns to the atmosphere as water vapor.