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.
The most important use of hydrogen is in the ...
Copper metal will react with concentrated trioxonitrate (V) acid to give? ...
A certain hydrocarbon on complete combustion at s.t.p produced 89.6dm3 of CO2 and 54g of w...
The green colour solution of an Fe2 salt changes to a brown solution of an Fe3+ salt by ...
Geometric (cis-trans) isomerism is exhibited by ...