A
Refueling commercial ships with zero- or low-carbon fuels like green ammonia or hydrogen
B
Providing emergency dry-docking facilities for oil tankers
C
Disposing of untreated ballast water in designated deep-sea zones
D
Charging electrical batteries of submarines using nuclear reactors
Correct answer: (a) Refueling commercial ships with zero- or low-carbon fuels like green ammonia or hydrogen
Explanation
Option A is correct as green bunkering refers to refueling infrastructure supplying zero- or low-carbon fuels like green ammonia or hydrogen to commercial shipping. The other options are unrelated.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.