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Environmental Issues

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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 is mainly produced by the activity of anaerobic bacteria on sewage?
    1. Laughing gas
    2. Propane
    3. Mustard gas
    4. Marsh gas
Correct Option: D

Marsh gas is another term for methane, produced by plants decomposing under water.


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