Question

this movement of birds is called migration the change in the pattern of movement of birds suggests
options:
the northern regions have become warmer because of climate change
the southern regions have become colder because of climate change
the northern regions have become colder because of climate change

Explanation:

Bird migration patterns shift in response to temperature; birds move to regions with suitable temperatures for breeding and feeding. A change in their movement pattern (implied by the upward trend in the graph, indicating warming) would mean northern regions are now warmer, making them more habitable, aligning with climate change impacts.

Answer:

the northern regions have become warmer because of climate change