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Ecosystem

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Advanced Botany

Plant Growth and Development
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Sexual Reproduction in Flowering Plants
Reproduction in Organisms
The Living World
Respiration in Plants
Photosynthesis
Mineral Nutrition
Transport in Plants
Cell Cycle and Cell Division
Cell-The Unit of Life
Anatomy of Flowering Plants
Morphology of Flowering Plants
Plant Kingdom
Biological Classification
  1. Which of the following pairs is a sedimentary type of biogeochemical cycle?
    1. oxygen and nitrogen
    2. phosphorus and sulphur
    3. phosphorus and nitrogen
    4. phosphorus and carbon dioxide
Correct Option: B

Biogeochemical cycles: Two types: (a) Gaseous: Biogenetic materials involved in circulation are gases eg. N2, O2, CO2 etc. (b) Sedimentary: Biogenetic materials involved in circulation are nongaseous eg. P, Ca, S etc. forms rocks.


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