Question

If a well can irrigate 2.5 % of cultivable land how many wells would irrigate whole of the land

Answer 1

Answer:40

Explanation:as 2.5%is irrigated from a well 100 %would be 100÷2.5

Answer 2

Cultivated Crop

Explanation:

• Water system water quality is a basic part of nursery crop creation.
• There are numerous components which decide water quality,and the  most significant are dissolvable salts alkalinity and pH.
• In any case, there are a few different variables to consider, for example, regardless of whether hard water salts, for example, calcium and magnesium or overwhelming metals that can obstruct water system frameworks or individual dangerous particles are available.  
• High dissolvable salts can legitimately harm roots, meddling with water and supplement take-up. Salts can amass in plant leaf edges, causing consuming of the edges.
• Water with high alkalinity can unfavorably influence the pH of the developing medium, meddling with supplement take-up and causing supplement insufficiencies which bargain plant wellbeing.
• Suspended solids should be expelled from water to forestall stopping up of funneling, valves, spouts and producers in a water system framework.
• Solids incorporate sand, soil, leaves, natural issue, green growth and weeds. Ground water, albeit typically perfect, may contain fine particles of sand or different particulates. These can be expelled through filtration.  
• Most of horticultural water system frameworks in Georgia fit into one of two general classifications: sprinkler water system and miniaturized scale water system. Sprinkler water system frameworks incorporate focus turn, straight move, voyaging weapon, changeless set, and strong set. Miniaturized scale water system frameworks incorporate dribble (or stream) water system and small scale sprinklers.These factors include.such as crop ,fuel cost and accessibility ,starting expense ,work necessities ,size and state of field,water source .
• Most focus turns have end weapons that are huge sprinklers situated at the external finish of the framework. These can be turned on and off as the framework moves around the field; they permit the framework to water an extra 100 to 150 feet in corners and other unpredictable pieces of the field.