These react with water vapour in the air and cause acid rain

These react with plants and cause greenhouse effect

These react with oxygen and cause its depletion

These react with ozone layer and causes its depletion

21 kJ/min

210kJ/min

420 kJ/min

620kJ/min

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Vertical line

Inclined line

Curved line

Coefficient of performance of refrigeration

Coefficient of performance of heat pump

Relative coefficient of performance

Refrigerating efficiency

Remains constant

Increases

Decreases

None of these