Questions

1.Logout of your computer each time you have finished using it

2.Install and use anti-virus software on your computer 

3.Do not use emails on your machine

4.Make sure all your files are safely stored to your floppy disks

A gland surrounding the neck of the bladder in male mammals and releasing a fluid component of semen is Prostate gland which is below the bladder and surrounding the urethra.

Biodegradable substances can be broken down into simpler, harmless substances in nature with due course of time by the biological process such as action of microbes. They can be recycled as a part of food chain.

Here, Leather bags are biodegradable.

SHORT is the required five letter word, which becomes SHORTER when two letters 'ER' are added to it.

The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life is called Biosphere.

A Mirage is a naturally occurring optical phenomenon due to unequal heating of different parts of the atmosphere in which light rays bend to produce a displaced image of distant objects or the sky.

The trajectory of the bullet is a parabola