On the graph, what's the relationship between the concentration of atmospheric CO2 and time? As years move closer to the present time, the percentage of atmospheric CO2 remains constant. As years move closer to the present time, the percentage of atmospheric CO2 increases. There's no visible correlation between the progression of years and the percentage of atmospheric CO2. As years move closer to the present time, the percentage of atmospheric CO2 decreases.

it should be p1 v1 = p2 v2

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.