Answers

2015-07-15T18:32:48+05:30
Becoze there stem which hold the leave being not strong that why its fall and being very very light
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2015-07-16T18:54:25+05:30
Chlorophyll pigment is exhausted so tree sheds it off the same way we throw away batteries with no power
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pls mark it brainliest if you like it