Question
Write the formula of lead sulphate.
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| Trophic level of food chain | Category of organism | Nutritiontype | Name of organism In food chain | Energy flow |
| Trophic level IV | a | d | Hawk | |
| Trophic level III | Secondary consumer | e | g | |
| Trophic level II | b | heterotrophic (herbivores) | h | |
| Trophic level I | c | f | herb |