Question
Match List I with List II
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Roadside – Parthenium sp. Xerophytic – Pluchia lanceolata Floating aquatic – Eichhornia crassipes Submerged aquatic – Hydrilla verticillata
Natural rubber is the polymer of:
The electronic configuration of an atom having atomic number 20 isÂ
The element used for making solar cells is
The chiefsource for the production of nitrogeneous fertilizers is :Â
Which of the following is an iron ore ?Â
Which of the following is used to increase the antiknocking property of petrol?
The total energy of revolving electron in an atomÂ
Which one of the following is not a greenhouse gas?Â
Which mineral is the ore Of aluminium?
Bakelite is a copolymer of Phenol and