Class 4

River's Tale (Water Ecology) question bank (EVS)

Practice 42 free Class 4 EVS - River's Tale (Water Ecology) questions with answers and step-by-step solutions.

Q1.

What hypothesis would an investigator test when analyzing anomalies in 'Water Pollution Sources'?


(A)
A falsifiable, testable proposition based on scientific principles of Water Pollution Sources
(B)
An untestable guess
(C)
A popular opinion
(D)
A mythological story
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Q2.

Which modern technological breakthrough is directly rooted in the science of 'Water Pollution Sources'?


(A)
Horse carts
(B)
Biotechnology, clean energy, advanced materials, or medical diagnostic devices derived from Water Pollution Sources
(C)
Manual stone tools
(D)
None
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