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The law of minimum was given by which of the following scientist?
Tristeza virus is associated with .....
Which weed classification involves plants that grow in wild as well as cultivated lands?
Visual aid of communication does not include which of the following?
Fish which spend most of their lives in the sea and migrate to freshwater for breeding
The hormone responsible for promoting fruit ripening and senescence is:
___________ is a permit or certificate allowing the holder to emit carbon dioxide or other greenhouse gases.
Which of the following germs has colnocytic mycelium?
Which of the following factor is not a primary cause of soil erosion?
Father of Plant Pathology in India is known as: