Carbon dioxide is a trace gas in earths atmosphere. Although only a small percentage of the atmosphere consists of carbon dioxide, this gas plays an important role in earths atmosphere. Which of the following describes the role of carbon dioxide?

A- carbon dioxide influences the mass of the atmosphere
B- carbon dioxide influences the height of the atmosphere
C- carbon dioxide influences the heating of the atmosphere
D- carbon dioxide influences the density of the atmosphere

C), carbon dioxide influences the heating in the atmosphere.

Explanation:

It is a heat-trapping gas; contributes to global warming throught the combustion processes of the burning of fuel and oils.

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally