Botany MCQs
Topic Notes: Botany
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
1
Which group of organisms is used to selectively extract metals from raw ore?
Answer:
bacteria
Bioleaching is a process where specific bacteria, such as Acidithiobacillus ferrooxidans, are used to extract valuable metals like copper, gold, and uranium from low-grade ores. These bacteria oxidize metal sulfides, converting them into soluble forms that can be easily recovered from the solution.