Chemoautotrophs are those organisms which obtain energy:
[amp_mcq option1=”from the oxidation of organic electron donors in the presence of light.” option2=”solely from the oxidation of inorganic electron donors in the presence of light.” option3=”from the oxidation of organic electron donors in the absence of light.” option4=”solely from the oxidation of inorganic electron donors in the absence of light.” correct=”option4″]
This question was previously asked in
UPSC Geoscientist – 2020