N.C.E.R.T. Simplified

Q. Describe any five measures adopted for conservation of water resources. A. Kuls/Guls: These are  diversion channels which people built in hills and mountainous regions especially Western Himalayas for agriculture. Inundation Channels:   In the flood plains of Bengal, people developed inundation channels to irrigate their fields.  These inundation channels carry flood water from rivers to the fields. Khadins/Johads:   In arid and semi-arid regions, agricultural fields were converted into   rainfed   storage structures that allowed the water to stand and moisten the soil like the ‘ khadins ’ in Jaisalmer and ‘Johads’ in other parts of Rajasthan. Tankas:   In the semi-arid and arid regions of Rajasthan, particularly in Bikaner, Phalodi and Barmer, almost all the houses traditionally had underground tanks or tankas for storing drinking water. The tanks could be as large as a big room. ・The tankas are part of the well-develope...

Very Short Answer Questions Q. Which is the largest bauxite producing State? A. Odisha Q. Which region of India contains maximum reserves of coal and metallic mineral? A.  The peninsular region contains maximum reserves of coal and metallic minerals. Q. Which minerals are indispensable for electrical and electronic industries? A. Mica , copper, iron ore. Q. Where is Khetri Mine situated? A.  Rajasthan Q. Give examples of metallic minerals? A. (i) Copper  (ii) Silver  (iii) Gold  (iv) Iron ore (v) Platinum  (vi) Tin Q. Give examples of non-metallic minerals? A.  (i) Limestone  (ii) Mica  (iii) Coal  (iv) Potash  (v) Sandstone  (vi) Marble (vii) Granite  (viii) Petroleum Short Answer Questions Q. "India's future is very bright in Solar energy". Support the statement. OR "Solar energy is becoming popular in rural and remote areas." Justify. A. Solar energy is bec...

Q. Explain the importance of Conservation of resources. Mention any three measures of conservation. A.   Resources are vital for any developmental activity. But irrational consumption and over-utilisation of resources may lead to socio-economic and environmental problems. To overcome these problems, resource conservation at various levels is important. Three measures of conservation: (i) identification and inventory of resources across the regions of the country. This involves surveying, mapping and qualitative and quantitative estimation and measurement of the resources. (ii) Evolving a planning structure endowed with appropriate technology, skill and institutional set up for implementing resource development plans. (iii) Matching the resource development plans with overall national development plans. Q. What is resource planning? Why is it necessary? Give any two reasons. A.  Resource planning is a widely accepted strategy for judicious use of reso...

Q. What are basic industries? A.  Basic or key industries are the industries which supply their products as raw materials to manufacture other goods e.g. iron and steel and copper smelting, aluminium smelting etc. Q. Where was the first jute mill set up in India? A.  The first jute mill was set up near Kolkata in 1859 at Rishra. Q. Which state has the largest number of jute mills? A.  Most of the Jute mills are located in West Bengal, mainly along the banks of the Hugli river, in a narrow belt (98 km long and 3 km wide). Q. Why is iron and steel industry known as a heavy industry? A. Iron and steel is a heavy industry because all the raw materials, as well as finished goods, are heavy and bulky  entailing heavy transportation costs.  Q. Which agency markets steel for the public sector plants?  A. Steel Authority of India Ltd. (SAIL) markets steel for the public sector plants. Q. Which city is known as “Manchester of In...