The ozone layer is mainly found in the lower portion of the _______.
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In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.
In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.
Disarming
Which of the following statement is CORRECT?
The passage of an electric current through a conducting liquid causes ___________.
Glass is also called ________.
Name the acid present in lemon.
_______________ is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration.