Learning Stones

    ECONOMIC IMPORTANCE OF PLANTS     COMMON NAME  BINOMIAL  NAME  USES  USEFUL PARTS  Pirandai  Cissus quadrangularis  To treat asthma and stomach troubles  Entire plant  Manathakkali  Solanum nigrum  Curing liver disorders like cirrhosis of liver  Entire plant  Thottal Surungi  Mimosa pudica  Curing piles,minor skin wounds and whooping cough  Entire plant  Rice  Oryza sativa  major food of half of the world's population  Fruit (Caryopsis)  Groundnut  Arachis hypogea  oil is extracted from the seeds and used as fine cooking medium  seeds  Cotton  Gossypium barbadense  The seed coat of this plant produces surface fibres for textile industry  seed coat fibres  Lady's finger  Abelmoschus esculentus  vegetable  tender fruit  Potato  Solanum tuberosum  common vegetables throughout the world  st...

      SYSTEMATIC POSITION OF MALVACEAE The cotton family Class : Dicotyledonae Sub - class : Polypetalae Series : Thalamiflorae Order : Malvales Family : Malvaceae SYSTEMATIC POSITION OF SOLANACEAE The potato family Class : Dicotyledonae Sub - class : Gamopetalae Series : Bicarpellate Order : Polemoniales Family : Solanaceae SYSTEMATIC POSITION OF EUPHORBIACEAE The castor family Class : Dicotyledonae Sub - class : Monochlamydeae Series : Unisexuales Family : Euphorbiaceae SYSTEMATIC POSITION OF MUSACEAE The banana family Class : Monocotyledonae Series : Epigynae Family : Musaceae     SYSTEMATIC POSITION OF LAURINEAE Class : Dicotyledonae Sub - class : Monochlamydeae Series : Daphnales Family : Laurineae

    MALVACEAE - ECONOMIC IMPORTANCE Fibre plant  :  Gossypium hirsutum  yeilds cotton fibres of commercial value. Food plant  : The tender fruit of  Abelmoschus esculentus  is used as vegetable. Timber plant  : Timber obtained from  Thespesia populnea  is used for making boat and furniture. Medicinal plant  : Roots and leaves of  Abutilon indicum  are used against fever. Ornamental plant  :  Hibiscus rosa-sinensis  is grown in gardens.       SOLANACEAE- ECONOMIC IMPORTANCE Food plant :  Tubers of  Solanum tuberosum  are used as common vegetables. Medicinal plant :  Roots of  Atropa belladonna  yield powerful alkaloid 'atropine' . It is used for relieving muscular pain . Leaves, flowers, berries of  Solanum trilobatum  are used to treat cough. Tobacco :  Nicotine in the leaves of  Nicotiana tabacum  is considered to be the principal al...

  PRESCRIPTIVE PROCESS MODEL Select the model which is the combination of waterfall and incremental (or iterative) models Prototyping model Agile model XP model Spiral model Team members waiting time is very less in Prototyping model Incremental model Waterfall model The success of Spiral model lies on the effective planning on Risks True False Select the CORRECT item about the Spiral model Requirements donot have any changes Requirements are complex and need evaluation to get clarity Customer is sure about the set of requirements Suits for Short term project Identify the traditional process model V model XP model Spiral model Agile model Select the type of testing done during Architecture design System Testing Acceptance Testing Unit Testing Integration Testing Select the suitable model which does the client evaluation prior before actual design starts Spiral model Waterfall model Prototyping model Incremental model Select the phase when Implementation is done Construction Modelin...

  OBJECTIVE GENERAL KNOWLEDGE -  DISCRETE MATHEMATICS A set of formulae A, B, C, D,......,R is said to be inconsistent if  their disjunction is a tautology their conjunction is a tautology their conjunction is a contradiction their disjunction is a contradiction (x)(A(x) → B is equivalent to (∃x) (A(x) → B) ((∃x) A(x) → B) ((x)(A(x)→B) Which of the following propositions are equivalent over the universe of integers,.   (i) 0< n^2 ≤ 4. (ii)  0< n^3 ≤ 8. (iii)  0< n ≤ 2 (i) and (ii) are equivalent (i) and (iii) are equivalent all are equivalent (ii) and (iii) are equivalent Let L(x, y) be the statement “x loves y,” where the domain for both x and y consists of all people in the world. Use quantifiers to express, “Joy is loved by everyone.” ∃x ¬L(Joy, x) ∃y∀x L(x, y) ∀x L(x, Joy) ∀y L(Joy,y) An Open statement is a declarative sentence that is a tf- statement when each of its symbols is replaced by a specific object from a designated set...