MCQ
The ‘Polyblend’ is $a/ an:$
- ✓Electronic waste buried in the landfills.
- BRecycled modified plastic waste used for laying the roads.
- CPlastic film$-$waste to make disinfectants.
- DFine powder of plastic waste used to make the plastic bags.
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$I.$ To minimize their surface volume ratio
$II.$ To minimize heat loss
$III.$ To maximize their surface volume ratio
$IV.$ To maximize heat loss
Choose the correct combination from the given option
$I -$ Tapetum nourishes the developing pollen grains.
$II-$ Hilum represents the junction between ovule and funicle
$III-$ In aquatic plants such as water hyacinth and water lily, pollination is by water:
$IV-$ The primary endosperm nucleus is tripoid.