Questions

The earliest historic evidences of use of metal are of Chalcolithic Age or Stone-Copper Age, which covered the period from 1800 - 800 BC. This period was by the use of Copper as well as stone.

Hence, the first metal to be used in India is Copper.

1. In India Alluvial Soils are most likely found in Indo-Gangetic Plains that stretches across almost East and North India. 

2. Indo-Gangetic Plains has got this name after the two rivers The Indus and The Ganges Drain th plain.

3. These soil cover more than the 35% of the total land in India.

4. These Soils are suitable for Wheat, Vegetables, Cotton, Bajra, Oil seeds,...

5. These soils tend to be sandier and has quick draining properties than many other soils in India.

Indira Gandhi the first Prime Minister of India is known as the Iron Lady of India.

India’s first-ever Rural LED Street Lighting Project will be implemented by the Government of India (GoI) in Andhra Pradesh (AP). The Energy Efficiency Services Limited (EESL) under the Ministry of Power will retrofit10 lakh conventional street lights with LED lights in Gram Panchayats of 7 districts in AP. This is the first project for rural LED street lighting in the country under the GoI’s Street Lighting National Project (SLNP). In the first phase, the replacement will be undertaken in gram panchayats of the districts of Guntur, Prakasham, Nellore, Kurnool, Kadapa, Ananthapur and Chittoor. This replacement drive in rural areas will help the gram panchayats to cumulatively save approximately 147 million units of electricity annually and lead to reduction of 12 crore tonnes of CO2. The entire upfront capital cost of this project is being funded by French Development Agency Agence Française de Développement (AFD).

A complete binary tree is a binary tree where all the levels have maximum number of nodes except possibly the last level.

The depth of complete binary tree of n nodes will be Dn=log 2 (n+1) where Dn is the height or depth of the tree and n is the number of nodes.