manojsirscience4u.blogspot.com
manojsir-science blog: 08/01/2008 - 09/01/2008
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Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Wednesday, August 27, 2008. ENVIRONMENT AND ENVIRONMENTAL PROBLEMS - III : LONG ANSWERS. GIVE ANSWER IN DETAIL. Describe sources of air pollution in brief. The two types of sources of air pollution are : Natural sources and man-made sources. Natural sources(factors) polluting the atmosphere are : volcanoes, forest fires, decaying plants, storms, pollen grains, lightening-induced chemicals, etc.
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manojsir-science blog: 01/01/2007 - 02/01/2007
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Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Wednesday, January 31, 2007. ENERGY SOURCES - II :BRIEF ANSWERS. A very minute part of sun's energy reaches the earth.' Justify giving details. Sun is the ultimate source of energy for earth. Tremendous amount of energy is continuously produced in sun due to thermonuclear fusion process and this energy is radiated by the sun into the space. The sun releases 3.8 x 10. Only 1.7 x 10. Only 8 - 1...
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manojsir-science blog: HEREDITY AND EVOLUTION - I : MCQs & SHORT ANSWERS
http://manojsirscience4u.blogspot.com/2008/08/heredity-and-evolution.html
Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Friday, August 15, 2008. HEREDITY AND EVOLUTION - I : MCQs and SHORT ANSWERS. SELECT THE CORRECT ALTERNATIVE. Variation is observed in. Both asexual reproduction and sexual reproduction. The number of genes is the number of chromosomes. Less than or equal to. In human being pairs of chromosomes are present. The number of genes in human being is about. 30,000 to 40,000. The principle of inheri...
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manojsir-science blog: 04/01/2007 - 05/01/2007
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Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Wednesday, April 18, 2007. NUTRITION AND RESPIRATION IN ORGANISMS - III : LONG ANSWERS. GIVE ANSWER IN DETAIL. Define nutrition, mention its types and describe each type with examples. The process of intake of nutrients and their utilisation in every living cell of the body is called nutrition. Heterotrophic nutrition is classified into three types : (i) Saprophytic nutrition (ii) Parasitic n...
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manojsir-science blog: HEREDITY AND EVOLUTION - III : LONG ANSWERS
http://manojsirscience4u.blogspot.com/2008/08/heredity-and-evolution-iii-long-answers.html
Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Tuesday, August 19, 2008. HEREDITY AND EVOLUTION - III : LONG ANSWERS. GIVE ANSWER IN DETAIL. Explain : Heredity and variation. Transmission of characters from parents to offsprings is known as heredity. Fertilised egg or zygote carries hereditary information. The zygote develops into a particular type of offspring only. Variation passes from generation to generation. During fertilisation, ga...
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manojsir-science blog: ENVIRONMENT AND ENVIRONMENTAL PROBLEMS - I : MCQs & SHORT ANSWERS
http://manojsirscience4u.blogspot.com/2008/08/environment-and-environmental-problems.html
Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Friday, August 22, 2008. ENVIRONMENT AND ENVIRONMENTAL PROBLEMS - I : MCQs and SHORT ANSWERS. SELECT THE CORRECT ALTERNATIVE. Which of the following is a greenhouse gas? Is used to convert organic pollutants into water vapour and CO. Are used in electrostatic precipitators. Biological oxygen demand of is the least. Compounds of cause Minamata disease. Due to eutrophication . The interrelation...
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manojsir-science blog: 07/01/2007 - 08/01/2007
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Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Sunday, July 29, 2007. REPRODUCTION IN ORGANISMS - I : MCQs and SHORT ANSWERS. SELECT THE CORRECT ALTERNATIVE. Which of the following is not a unicellular organism? Which of the following shows budding? Which of the following shows multiple fission? Which is the most common method of reproduction in majority of fungi and bacteria? Which of the following shows spore formation? A pair of testes.
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manojsir-science blog: 05/01/2007 - 06/01/2007
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Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Tuesday, May 22, 2007. TRANSPORTATION, CIRCULATION and EXCRETION IN ORGANISMS - III : LONG ANSWERS. GIVE ANSWER IN DETAIL. Xylem is a tissue associated with the transport of water in higher plants. Water absorbed through roots is transported to the stem, branches, leaves and flowers by xylem. Tracheids and vessels (tracheae) are the main components of xylem. Absorption of minerals occurs simu...
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manojsir-science blog: 07/01/2008 - 08/01/2008
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Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Thursday, July 24, 2008. REPRODUCTION IN ORGANISMS - III : LONG ANSWERS. GIVE ANSWER IN DETAIL. Describe fission as a method of reproduction. Fission occurs in unicellular organisms. Binary fission and multiple fission are its two types. An organism produces two unicellular organisms identical to the parent cell through mitotic division. Describe budding as a method of reproduction. In multic...
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manojsir-science blog: ENVIRONMENT AND ENVIRONMENTAL PROBLEMS - III : LONG ANSWERS
http://manojsirscience4u.blogspot.com/2008/08/environment-and-environmental-problems_27.html
Tutorials of Science for the students of Class 10 of Gujarat Secondary Education Board and Other Boards in India. Wednesday, August 27, 2008. ENVIRONMENT AND ENVIRONMENTAL PROBLEMS - III : LONG ANSWERS. GIVE ANSWER IN DETAIL. Describe sources of air pollution in brief. The two types of sources of air pollution are : Natural sources and man-made sources. Natural sources(factors) polluting the atmosphere are : volcanoes, forest fires, decaying plants, storms, pollen grains, lightening-induced chemicals, etc.