important sslc science questions

 There are 7days in a week. Like wise there are 7colours in a rainbow. The colours are violet, indigo , blue, green, yellow, orange, red these colours are the emission of rays. The splitting of white ray into seven colours through a rain drop. This is a property of reflection.

 The volvox an algae discharge duties of its own namely division of labour .Each group doing patch  of work .This way of doing duties is suitable nowadays.If any head of the family is unable the other members share the assignment of work and complete the same

 The algae is an autotrophs. The fungi is an hetertrophs. The algae prepares starch which is used by fungi in lichens . The lichen body is made up of two components namely algae and fungi.The fungi could not prepare food but it invades other organism for its survival. This mechanism is peculier, it is really wonder of nature.

 The buffaloes are usually haunted in ponds and also canals. It is restless due to seasonal variation.

 Lotus flower in a pond gets pollinating pollen from same flower or different flowers. Even the bee an agent,pollinating the flower  but its appearance is gentle and single. It has its uniqueness of socially treated never comparable with other flowers. It is in water exposing outside from water,so it is a national flower of India 

 The bee stings human beings if it is getting disturbed. The honey which is famous in tamilnadu is marthandam.it has special remarkable taste. The worker bee works all the way in collecting nectar as well as honey like carrying bundles of sticks like a coolie but other bees never help worker bee but all bees are same species why the stinging cell more aggressive in worker bee never it has it is god make 

 The garbage which is decomposable and non decomposable will be sort out and it will be turn out into manure which will be organic of no use it is decomposing slow practically and also kitchen waste is meagre  again the earth worm which is formed in cluster from this decomposing manure harm the soil floor it erodes the surface and make a crack in building