In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called _____________.
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Photosynthesis in plants takes place in
The Tropic of ____________ passes almost halfway through India.
Annona squamosa is the scientific name of
Punica granatum is the scientific name of _________
How much time does a Geostationary satellite take to complete one orbit, at the height of 35790 km?
Which of the following is an ore of iron?
Ultraviolet radiation in the stratosphere is absorbed by