Argo (Ocean Monitoring system) consists of almost _________ “Argo Floats”.

(A) 2000
(B) 4000
(C) 6000
(D) 8000

Answer: (B) 4000
Argo is an international program that uses profiling floats to observe temperature, salinity and current.
The Argo fleet consists of almost 4000 drifting “Argo floats” that deployed worldwide.