Questions

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.

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.

Control Unit can perform the functions Interpret instructions, Execute instructions and Direct operations. But Reading instructions is not a function of the Control Unit.

Now a days, printers we are using are called as laser printers. The speed of a laser printer is measured in PPM i.e, Pages Per Minute. 

Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image.

Compared to inkjet printers which use ink for printing laser printers are more expensive as they use toner which lasts for long.

International Plastic Bag Free Day was observed on 3rd of July 2017. It has been dedicated to heightening awareness about plastic and disposable carrying devices. International Plastic Bag Free Day gives us an opportunity to remind ourselves, and others, that every action we take, and every bag we dispose of effects the lives of everyone in the world for generations to come.

Yes, all the given statements are NOT true about electrons and atomic orbitals.

True statements are ::

An orbital can contain a maximum of two electrons.

An atom’s lowest energy level has only one orbital.

An electron has different amount of energies in all orbitals.