MCQ
Synthesis of ethylene takes place in ______
- ✓all of these
- Bshoot apical meristem
- Croots
- Dripening fruits
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(I) Energy is emitted when electron moves from a higher stationary state to a lower one.
(II) Orbits are arranged concentrically around the nucleus in an increasing order of energy.
(III) The energy of an electron in the orbit changes with time.

