Q. 3 Give scientific reason. (1) Modern methods of irrigation help us to use water economically. Why? (2) Vaccination is insisted in present covid-19 situation. Why?
Answers
Answer:
Explanation:
Modern methods of irrigation help us use water economically, thereby conserving water. In addition such methods helps use to save time and labour. hence, they are more efficient than traditional methods of irrigation.
surface, plastic drip tubes or trickle emission devices are buried below the soil surface within plant root zones. This low-pressure method of irrigation can reduce water use by 25% compared to above ground sprinkler irrigation, and works well in irregular shaped fields and on slopes.
COVID-19 vaccines are effective
COVID-19 vaccines also help keep you from getting seriously ill even if you do get COVID-19. Getting vaccinated yourself may also protect people around you, particularly people at increased risk for severe illness from COVID-19.
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