- ABiofertilizer
- BFarmyard manure
- CGreen manure
- DBacteria
Explanation:
Thurioside is a toxin produced by the bacterium Bacillus thuringiensis. Thus, it is of bactericidal origin. It is used as a bio-insecticide, as it is highly effective against disease causing insects like flies, moths, mosquitoes etc. If consumed by mistake, it acts as a stomach poison.
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$I.$ Species diversity increases as we move away from the equator towards the poles.
$II.$ Stellar's sea cow and passenger pigeon got extinct due to overexploitation by man.
$III.$ Lantana and Eichhornia are invasive weed in India.
$IV$. The historic convention on biological diversity was held in $1992 .$
Choose the option containing correct statements.
Reason : All life forms were in water environment only.