Some examples of software:-

1) Opera (Web Browser)
2) Microsoft Word (Word Processing)
3) Microsoft Excel (Spreadsheet software)
5) MySQL (Database Software)
6) Microsoft Powerpoint (Presentation Software)

Some examples of software:-

1) Opera (Web Browser)
2) Microsoft Word (Word Processing)
3) Microsoft Excel (Spreadsheet software)
5) MySQL (Database Software)
6) Microsoft Powerpoint (Presentation Software)

Leaded petrol is very toxic . After it's combustion takes place in vehicles,  oxides of lead ( PbO , pbO2) are released in the atmosphere . They effect brain development in children. It is fatal at high concentrations . Lead compounds also cause forest decline .

For this reason usage of unleaded petrol is encouraged in … Read more