Answer: Option 1
Barriers to entry is an industry strategic factor that relates to whether new entrants face a disadvantage when attempting to enter an industry.
Answer: Option 5
The phrase 'not much has been done in this field' indicates that wind energy is a comparatively newly emerging field. So, I follows. The expression 'there is...
Answer: Option 2
Though the reserves of coal are limited, yet stopping its use till alternate sources of energy have been discovered, is no solution to conserve it. So, I...
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