With reference to the above passage, the following assumptions have been made: 1. Global warming is causing spring to come early and for longer durations. 2. Early spring and longer period of spring is not good for bird populations. Which of the above assumptions is/are correct?

Passage

Scientist studied the vernal window – transition period from winter to the growing season. They found that warmer winters with less snow resulted in a longer lag time between spring events and a more protracted vernal window. This change in the spring timetable has ecological, social and economic consequences – for agriculture, fisheries and tourism. As the ice melts earlier, the birds don't return, causing a delay, or lengthening in springtime ecological events.

QUESTION

CSAT

Easy

Comprehension

Prelims 2023

With reference to the above passage, the following assumptions have been made:

Global warming is causing spring to come early and for longer durations.
Early spring and longer period of spring is not good for bird populations.

Which of the above assumptions is/are correct?

Select an option to attempt

Explanation

Assumption 1 is valid: The passage mentions “warmer winters with less snow resulted in a longer lag time between spring events and a more protracted vernal window.” This implies that global warming is causing spring to arrive earlier and last longer.

Assumption 2 is invalid: The passage notes that early ice melt causes birds to return later, affecting springtime events. However, it does not state that this is harmful to bird populations; it only mentions a timing mismatch.

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