When Does A Drought Occur Class 8 Chemistry CBSE - Vedantu

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AnswerQuestion Answers for Class 12Class 12 BiologyClass 12 ChemistryClass 12 EnglishClass 12 MathsClass 12 PhysicsClass 12 Social ScienceClass 12 Business StudiesClass 12 EconomicsQuestion Answers for Class 11Class 11 EconomicsClass 11 Computer ScienceClass 11 BiologyClass 11 ChemistryClass 11 EnglishClass 11 MathsClass 11 PhysicsClass 11 Social ScienceClass 11 AccountancyClass 11 Business StudiesQuestion Answers for Class 10Class 10 ScienceClass 10 EnglishClass 10 MathsClass 10 Social ScienceClass 10 General KnowledgeQuestion Answers for Class 9Class 9 General KnowledgeClass 9 ScienceClass 9 EnglishClass 9 MathsClass 9 Social ScienceQuestion Answers for Class 8Class 8 ScienceClass 8 EnglishClass 8 MathsClass 8 Social ScienceQuestion Answers for Class 7Class 7 ScienceClass 7 EnglishClass 7 MathsClass 7 Social ScienceQuestion Answers for Class 6Class 6 ScienceClass 6 EnglishClass 6 MathsClass 6 Social ScienceQuestion Answers for Class 5Class 5 ScienceClass 5 EnglishClass 5 MathsClass 5 Social ScienceQuestion Answers for Class 4Class 4 ScienceClass 4 EnglishClass 4 MathsWhen does a drought occur?AnswerVerified593.7k+ viewsHint: Water is the most important natural resource which is very vital for the living world. Though the earth’s 70% of the earth’s area is occupied by water but only 2.5% of the freshwater resources are available. The maximum volume of water is ocean water.Complete answer:Step 1In the earlier days, water was thought to be an element, till in 1781 Henry Cavendish showed that water can be prepared by igniting a mixture of two volumes of hydrogen and one volume of oxygen.Step 2There is surface water and groundwater available in the earth. The water which is located on the top of the Earth’s surface like a river, ponds, lakes are known as surface water. It is also known as blue water. Groundwater is the water that exists underground which flows naturally out of the rock materials.Step 3The water balance is maintained on the earth’s surface by a natural phenomenon known as the water cycle. In the water cycle, first, the surface water gets evaporated due to the heat by the sun rays. The evaporated water vapor rises up and gets condensed to form water droplets and forms the cloud. When the cloud gets heavier precipitation in the form of rain, snow, hail take place, and again this water seeps into the surface water and the groundwater thereby maintaining the water level.Step 4The major use of rainwater is in agriculture. The soil gets enough water, where the crops can grow properly. Water is required for the proper growth of the crops. When there is a proper rainfall the atmospheric temperature remains soothing.Step 5Sometimes there are situations when there is little or no rainfall for a longer period of time maybe for a year or two. This condition is known as drought. During this period both surface and groundwater are scarce. The lakes and the ponds dry up, thereby the aquatic plants and animals die. The soil gets extremely dried up and is left with cracks where the plantation is not possible. So, a famine takes place due to this condition. The animals which drink water from the nearby lakes and ponds die out of thirst.Note:Drought is a natural calamity which is an emergency situation. Sometimes it takes more than ten to twelve years to revive back after a drought period. It leads to a severe climatic change, change in the course of the rivers or total environmental change. Afforestation, rainwater harvesting are some of the important measures that can be taken to fight this natural calamity.Recently Updated PagesMaster Class 8 Social Science: Engaging Questions & Answers for SuccessMaster Class 8 English: Engaging Questions & Answers for SuccessClass 8 Question and Answer - Your Ultimate Solutions GuideMaster Class 8 Maths: Engaging Questions & Answers for SuccessMaster Class 8 Science: Engaging Questions & Answers for SuccessMaster Class 7 English: Engaging Questions & Answers for SuccessMaster Class 8 Social Science: Engaging Questions & Answers for SuccessMaster Class 8 English: Engaging Questions & Answers for SuccessClass 8 Question and Answer - Your Ultimate Solutions GuideMaster Class 8 Maths: Engaging Questions & Answers for SuccessMaster Class 8 Science: Engaging Questions & Answers for SuccessMaster Class 7 English: Engaging Questions & Answers for Success

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