Listen to:
Three Days Grace- Animal I have become

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Explanation:

This song is about a person who has been sick and tired about hiding his true rade and fury. When he finally reached his breaking point, he shows his long repressed emotion, hence him becoming an animal. "so what if you can see the darkest side of me none will ever change this animal i have become."

changeable lenses of different focal lengths allow light to enter the camera, which then forms the image on light-sensitive film" is the one among the following statements about working principle behind a basic still camera is true.