Improve the bracketed part of the sentence.All the allegations levelled (over) the poor watchman were found to be baseless.
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When a chemical bond is broken energy is
Bond breaking is an endothermic process.
Hence, bond breakage needs an amount of energy and uses some energy based on the strength of the bond to break the bond.
Improve the bracketed part of the sentence.I (didn't see) him since we met two years ago.
Which gas is a source of natural groundwater pollution?
Radon gas is a source of natural groundwater pollution.
Deficiency of which minerals causes goiter?
Deficiency of Iodine cause Goiter also called Enlarged Thyroid. It doesn't give any pain but difficult to swallow and breath are its causes.
Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.
A person who is working in the same institution.
To give money to agents for sales.
Which molecules prevent cell membranes from dissolving in water?
Cell membranes are made up of phospholipids which prevents them from dissolving in water.
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