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Question

The first pie chart plots the usage of energy in a typical Australian household. Energy is used for heating, water heating, cooling, lighting and refrigeration. The remainder, representing others, is lumped into “other appliances”. The second pie chart depicts how much greenhouse gas emissions emitted from these energy.

Overall, the percentages of emission released from these energy are generally higher than that of the usage of them, except for heating, which is the most environmentally friendly activity. Other appliances are the greatest emitter.

Heating and water heating made up the largest fraction in both charts, amounting to a half and a quarter in the total energy consumption, and nearly a half in the total gas emissions. However, these are the most sustainable energy; the amount of gas emitted from water heating is only 2% higher than that of its usage, and as for heating, that amount is roughly one-third of its usage.

Cooling and lighting take up the smallest in both charts, with 2% and 4% in energy consumption and 3% and 8% in the amount of gas emissions.

Other appliances and refrigeration are the most harmful energy; the amount of gases they released is double that of their usage, with 15% and 7% in energy consumption and 28% and 14% in household gas emissions.

AlpheccaStars · Accepted Answer

The first pie chart plots ~~the usage of~~ the proportion of energy used per type of appliance in a typical Australian household. Six types are shown: ;~~Energy is used for~~ heating, water heating, cooling, lighting and refrigeration. The remainder~~, representing others,~~ is lumped into “other appliances”. The second pie chart depicts ~~how much~~ the proportion of greenhouse gas emissions ~~emitted~~ from these types of appliances. ~~energy.~~

Overall, the percentages of emission released from these energy are generally higher than that of the energy usage of them, except for heating, which is the most environmentally friendly activity. (wrong word) Other appliances are the largest ~~greatest~~ emitter. (That is not correct. Other appliances are 28% but water heating is more, 32%)

Heating and water heating made up the largest fraction in both charts, amounting to a half and a quarter (wrong expression - three-quarters) in the total energy consumption, and nearly a half in the total greenhouse gas emissions. However, these are the most sustainable energy; (wrong expression) the amount of gas emitted from water heating is only 2% higher than that of its usage, (You need to use ratios to compare unlike measurements.) and as for heating, that amount is roughly one-third of its usage.

Cooling and lighting take up the smallest (Smallest is superlative. It refers to one item in a group.) portion in both charts, with 2% and 4% in energy consumption and 3% and 8% in the amount of gas emissions.

Other appliances and refrigeration are the most harmful energy; (Wrong expression) the amount of gases they released is double that of their usage, with 15% and 7% in energy consumption and 28% and 14% in household greenhouse gas emissions.

Example essay: (220 words)

The two pie charts compare the relative energy consumption and greenhouse gas emissions by six different types of appliances in a typical Australian household. These types are heating, water heating, cooling, lighting, refrigeration and “other appliances”.

Overall, two types, heating and water heating, consume the bulk of the total energy, nearly three-quarters, and they also account for half of the total emissions. Cooling uses the smallest amount of energy, and also is in last place in terms of emissions.

Even though it is the largest user of energy, heating is the most "environmentally-friendly" type of appliance. Its greenhouse gas emissions are 15% of the total whereas it consumes 42% of the total energy. That is a ratio of about 1:3. The lower this ratio, the more efficient the appliance is in terms of generating low amounts of greenhouse gas emissions. The worst type on this metric is a tie between refrigeration and lighting, each having a ratio of 2:1. Their measures are 14% and 8% respectively for greenhouse gas emissions and 7% and 4% for energy usage. The group of other appliances is not much better, with 15% of the energy usage and 28% of the greenhouse gas emissions. The second-highest energy consumer, water heating, (30%) is also relatively environmentally-friendly, with 32% of the emissions.

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