āϏāĻĒ্āϤāĻŽ āĻļ্āϰেāĻŖীāϰ āĻŦিāĻ্āĻাāύ : āĻĒāϰিāĻŦেāĻļ āĻ āĻāύāϏ্āĻŦাāϏ্āĻĨ্āϝ āϏāĻĒ্āϤāĻŽ āĻļ্āϰেāĻŖীāϰ āĻŦিāĻ্āĻাāύ āĻĒ্āϰāĻļ্āύ āĻ āĻāϤ্āϤāϰ | WBBSE Class 7th Science Question and Answer
āϏāĻĒ্āϤāĻŽ āĻļ্āϰেāĻŖীāϰ āĻŦিāĻ্āĻাāύ : āĻĒāϰিāĻŦেāĻļ āĻ āĻāύāϏ্āĻŦাāϏ্āĻĨ্āϝ āϏāĻĒ্āϤāĻŽ āĻļ্āϰেāĻŖীāϰ āĻŦিāĻ্āĻাāύ āĻĒ্āϰāĻļ্āύ āĻ āĻāϤ্āϤāϰ | WBBSE Class 7th Science Question…