Epoxy resins are used as
1 Moth repellants
2 Insecticides
3 Detergents
4 Adhesives
What is blood ? Describe its functions in the human body ?
What is the Genetics?
What is voltage? ?? What type of of show voltage. ?? Practillay how's voltage?
What is condensation? 1 Change of gas into solid 2 Change of solid into liquid 3 Change of vapour into liquid 4 Change of heat energy into cooling energy
Of the various forms of carbon, the one which is used for adsorption purpose, is 1 Diamond 2 Graphite 3 Coke 4 Wood charcoal
Name the scientist who has been invited by the Srilankan Governement to have a Study on Employment development?
Which of the following acids is used for ‘etching glass’? 1 HBrO3 2 H2F2 3 HCIO4 4 HIO4
A substance which changes readily into vapor without heating is called 1 Efflorescent 2 Synthetic 3 Volatile 4 Effervescent
what is center of gravity?
it is not advisable to sleep under a tree at night becouse trees release
What are the important factors of cosmic rays?
The group of metals Fe, Co, Ni may be best called as 1 Alkali metals 2 Rare metals 3 Main group metals 4 Transition metals