Question

10 items that humans use in everyday life and it contribute to air pollution also tell their alternatives, plz plz help me

Answer 1

carbon monoxide=Produce by incomplete combustion of fuels
Sulfur dioxide =IT is produce by volcanoes,industries,acid rain
 nitrogen oxide=It is produce by very high combustion
 VOC's =Methane and non methane gases
CFC's=Ultra Violet Rays 
 Particulates=Forest Fires
Toxic things=Polythene Bags
 Emmision= from factories
Ammonia=Agricultural Process
 odors=Garbage
Peroxyacetyl nitrate (PAN)= NOx and VOCs. 

Answer 2

There are four main computer hardware components that this blog post will cover: input devices, processing devices, output devices and memory (storage) devices. Collectively, these hardware components make up the computer system.