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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
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Mineral Nutrition
Transport in Plants
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Cell-The Unit of Life
Anatomy of Flowering Plants
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Plant Kingdom
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  1. Lead concentration in blood is considered alarming if it is
    1. 20 mg/100 ml
    2. 30 mg/100 ml
    3. 4–6 mg/100 ml
    4. 10 mg/100 ml
Correct Option: B

The concentration level of lead in blood is about 25 µg/100 ml. So any value above this is considered alarming.


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