Organisms called methanogens are most abundant in a
Correct answer: B. Cattle yard
- A. Sulphur rock
- B. Cattle yard
- C. Polluted stream
- D. Hot spring.
Explanation
Methanogens are any of various archaebacteria that produce methane; they include genera such as Methanobacillus and Methanothrix. Methanogens are obligate anaerobes found in oxygen deficient environments, such as marshes, swamps, sludge, and the digestive systems of ruminants. They are also utilized in gobar gas plants.
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Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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