WebFREE NCERT Solutions for class 7 Social science, Chapter 1 - Tracing Changes Through A Thousand Years from NCERT Textbook (Our Pasts II Ncert Solutions). ... Some of the technological changes associated with this period are − the Persian wheel, the spinning wheel and firearms in combat. Page No 15: Question 9: What are the difficulties ... WebWater is scattered throughout the land by a machine of sprinklers that move on wheeled towers in 360 degrees pattern or a circle that would move around the land and sprinkle water all over the soil and it is really efficient and effective and this procedure or system is well recommended in a lot of countries but mostly used in the USA.
The Persian Wheel in India - dph
WebNCERT Solutions for Class 7. NCERT Solutions for Class 7 Maths; NCERT Solutions for Class 7 Science; NCERT Solutions for Class 7 English; ... Persian wheels gave way to electric-run tube wells, which reduced the dependence of the farmers upon rainfall, and enabled larger areas of land to be irrigated. By mid-1970s, the entire cultivated area of ... WebWe prepared these questions as per the latest NCERT book and CBSE syllabus. Practicing these extra questions before the exam will ensure excellent marks in the exam. ... Answer: … city of lynwood illinois
NCERT Solutions for Class 9 Economics - Jagranjosh.com
WebThe Persian wheel is a mechanical water lifting device. It is usually operated by draught animals like bullocks, buffaloes, or camels. It is used to lift water from water sources … WebNCERT Solutions for Class 7 Social Science History Our Pasts-2, NCERT Textbook Solutions for Class 7 History, ... Some of the technological changes associated with this period were … door craft ideas