Consider the following statements: Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries. Statement II: Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals. Statement III: Activated carbon can be easily synthesized from environmental wastes with high carbon content. Which one of the following is correct in respect of the above statements?
Select an option to reveal the answer and explanation.
A hard Environment multiple-choice question from UPSC Prelims 2025. Attempt it above, then check the correct answer and detailed explanation below.
Show correct answer & explanation
Correct answer: A. Both Statement II and Statement III are correct and both of them explain Statement I
Statements II and III are both correct and both explain Statement I — activated carbon is an attractive remediation tool because it has a large surface area that adsorbs heavy metals (II) and because it can be cheaply synthesized from high-carbon environmental wastes (III).
Practise writing a full Environment answer and get it graded by our AI examiner — free.
More Environment questions
According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions?
Consider the following: 1. Cashew 2. Papaya 3. Red sanders How many of the above trees are actually native to India?
Consider the following: 1. Butterflies 2. Fish 3. Frogs How many of the above have poisonous species among them?
Which one of the following trees shows a unique relationship with an insect that has coevolved with it and that is the only insect that can pollinate this tree?
Which one of the following is the correct description of "100 Million Farmers"?
Consider the following statements: 1. Lions do not have a particular breeding season. 2. Unlike most other big cats, cheetahs do not roar. 3. Unlike male lions, male leopards do not proclaim their territory by scent marking. Which of the statements given above are correct?