Use the following information to answer 1-2:

• Gasoline can be represented by the empirical formula CH₂.
• There are 6.0 × 10⁸ automobiles in the world.

• On average, 95% of the carbon in gasoline is converted to CO₂.

• Average fuel efficiency is 11 L/100 km.

• Average distance travelled per car is 1.7 × 10⁴ km/yr.

• The mean density of gasoline is 800 g/L.

• Annual CO₂ emissions from fossil fuel combustion are 7.18 Pg C/yr.

1. For what fraction of annual CO₂ emissions from fossil fuel burning are automobiles responsible?
2. A 1000-kg car travels 1.6 × 10⁴ km/yr. What is the ratio of the mass of CO₂ produced by fuel combustion to the mass of the car, if the car’s fuel economy is:

A. 5.0 L/100 km
B. 7.5 L/100 km
C. 10 L/100 km

3. find out expected sea level rise for all possible combinations (shown in table below) of temperature increase and volume affected. Base your calculations on the following information and assumptions. Neatly lay out one ex calculation; do not show all calculations. Present your find outd values neatly in the table.

• Total ocean volume is exactly 1.36 × 10⁹ km³.

• Surface area of the oceans is exactly 3.61 × 10⁸ km².

• Initial mean temperature of the affected volume is 14°C.

• Density of sea water at various temperatures.

°C          Density, g/mL
14               1.02512
15               1.02500
16               1.02483
17               1.02466
18               1.02449

• Assume that the temperature change is uniform throughout the entire volume under consideration.

• Assume that the surface area of the oceans does not change.