Questions

The watt-hour (WH) is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time.

1 WH = 3600 joules.

A spreadsheet is an interactive computer application for organization, analysis and storage of data in tabular form. This software allows users to store data in rows and columns.

A chemical reaction in which involves the absorption of heat from the environment is called a Endothermic reaction. 

Examples : Dissolving ammonium chloride in water, photosynthesis, melting ice cubes, mixing of potassium chloride with water,...

In the contrast, chemical reactions involving release of heat are known as exothermic reactions.

Examples : Combustion, coal is burnt, mix of CaO with water,...

The headquarters of Youtube is in United States. The headquarters of some big companies are at

Google : United States

Yahoo : United States

Apple : United States

Mircosoft : United States

Facebook : United States

WhatApp : United States

Twitter : United States

YouTube : United States

Instagram : United States.

It is a host that has a multiple network interfaces and that requires multiple IP addresses is called as a Multi-homed Host