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which of the following physical characteristics of oil makes it difficult to be substituted in certain sectors e.g transportation(a)lower energy density(b)higher energy density(c)emits co2 when it is burnt (d)contain sulphur

Answer

Oil has a number of physical characteristics that make it difficult to be substituted in certain sectors such as transportation, including its lower energy density, high emissions of CO2 when burnt, and presence of sulphur.

Lower Energy Density

Oil has a lower energy density than many other sources of energy, meaning it takes up more space for the same amount of energy. This makes it less practical for use in transportation, as vehicles need to be able to store a large amount of energy in a small space.

High Emissions of CO2

Oil is a non-renewable source of energy, and when it is burnt it emits carbon dioxide, a greenhouse gas that contributes to global warming. This makes it difficult to use in transportation, as it is important to reduce emissions from this sector.

Presence of Sulphur

Oil also contains sulphur, which is a pollutant. This means that when it is burnt, it emits harmful pollutants into the air. This makes it difficult to use in certain applications, such as transportation, as it is important to reduce air pollution from this sector.

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