Q1 What do you understand by the term 'water resource' ? Ans :- The term 'water resource' refers to any of the entire range of natural waters that occur on the earth and are of potential use to living beings.
Q2. What is meant by rainwater harvesting ?
Ans :- Rainwater harvesting is the process of increasing the recharge of groundwater by capturing and storing rainwater locally in sub-surface water reservoirs.
Q3. What is meant by the term irrigation ?
Ans :- Irrigation refers to the process of watering of agricultural plants through artifical means from wells, tanks, tubewells, canals etc.
Q4 What is 'drip irrigation'? How is it useful?
Ans :- It is the most advanced and efficient method of irrigation. Usually used to irrigate fruits and vegetables, this system consists of perforated pipes that are placed between rows of crops or buried along their root lines and give water directly on to the crops. As a result, evaporation is drastically reduced and irrigation water is conserved. Drip irrigation allows the grower to customise an irrigation programme most beneficial to each crop.
Q5. What is meant by furrow irrigation ? What is its advantage ?
Ans :- It is a type of flood irrigation in which the water poured on the field is directed to flow through narrow channels dug between the rows of crops, instead of evenly distributing the water throughout the whole field. The furrows must have equal dimensions, in order to guarantee that the water is distributed evenly. Furrow irrigation is useful in areas where water is easily available.