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________ is a plant growing in a place where it is not wanted.
Concept: undefined >> undefined
The chemicals used for killing the weeds or inhibiting their growth are called as ______.
Concept: undefined >> undefined
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What do you mean by weeding?
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What is weed? Explain the different methods of weed control.
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The animal found in a particular area is known as _______.
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Analogy
Viscous force: ______:: Buoyant force: ______.
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Vacuum flask is also called as ______.
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The vacuum flask was invented by Scottish scientist ______.
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In a thermos flask, the vacuum between the two walls prevents heat from the inside to the outside by radiation.
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What is the function of the silvered wall in a thermos flask?
Concept: undefined >> undefined
In a series circuit, the current remains ______ throughout the circuit.
Concept: undefined >> undefined
What is the name of the sound produced by irregular vibrations?
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Mention any two ways to control noise pollution.
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Metalloids are ______ at room temperature.
Concept: undefined >> undefined
Tri oxygen molecule is known as ______.
Concept: undefined >> undefined
A gas that neither burns nor supports burning is ______.
Concept: undefined >> undefined
A ______ gas that is used to remove carbon impurities from the steel.
Concept: undefined >> undefined
Venus's atmosphere consists of roughly 96 – 97% of ______.
Concept: undefined >> undefined
