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(B) Chemoautotrophs are organisms that obtain energy by oxidizing reduced inorganic compounds such as ammonia $(NH_3)$,nitrites $(NO_2^-)$,hydrogen su

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Chemoautotrophs

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(B) Chemoautotrophs are organisms that obtain energy by oxidizing reduced inorganic compounds such as ammonia $(NH_3)$,nitrites $(NO_2^-)$,hydrogen sulfide $(H_2S)$,or ferrous iron $(Fe^{2+})$. They play a crucial role in recycling nutrients like nitrogen,phosphorus,iron,and sulfur in the ecosystem. Unlike photoautotrophs,they do not require sunlight for energy production.

Column-$I$ (Bacteria)	Column-$II$ (Shape)
$A$. Coccus	$iii$. Spherical
$B$. Bacillus	$i$. Rod-shaped
$C$. Vibrio	$iv$. Comma-shaped
$D$. Spirillum	$ii$. Spiral

Which organisms obtain energy from the oxidation of reduced inorganic compounds?

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