The gas that is most useful in protecting humans against ...
The gas that is most useful in protecting humans against solar radiation is?
chlorine
ozone
carbon (IV) oxide
hydrogen sulphide
Correct answer is B
The ozone layer in the stratosphere absorbs a portion of the radiation from the sun, preventing it from reaching the planet's surface.
Most importantly, it absorbs the portion of UV light called UVB.
A mixture of common salt, ammonium chloride and barium sulphate can best be separated by ...
Which of the following processes takes place during electrolysis? ...
The activation energy of a reaction can be altered by ...
The most abundant rare gas in the atmosphere is? ...
The general formula of an alkyl halide (which represent the halide) is? ...
What is the chemical symbol for Roentgenium? ...
Consider the following reaction equation: 2HCl+Ca(OH)2→CaCl2+H2O. What is the v...
Which of the following is NOT a redox reaction? ...
Which of the following metals is commonly alloyed with copper to make brass? ...