Respuesta :
The outcome of a seasonal change meaning a change that happens over and over at a certain time of year is Birds migrating to a warmer climate.
What causes seasonal changes?
The earth's rotate at its axis is tilted with regards to its orbital plane which leads is to different seasons.
When the earth's axis is towards the sun, it's summer in that hemisphere. When the earth's axis points away, vice versa.
Thus, option "D" is correct, Birds migrating to a warmer climate.
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Answer:
D.Birds migrating to a warmer climate is the correct answer.
Explanation: