The gas present in the stratosphere which filters out som...
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
helium
ozone
oxygen
methane
Correct answer is B
No explanation has been provided for this answer.
The oxidation number of manganese in KMnO4 is?...
What is the atomic number of Terbium? ...
The hydrolysis of proteins by diluting mineral acids produces ...
Which of the following statement is correct about the periodic table? ...
What volume of oxygen at s.t.p is required to burn completely 7.5 dm3 of methane according...
What happens when the nitrates of potassium, calcium, zinc and copper are separately heated? ...
The oxidation number of iodine in the iodate ion (IO -3) is...