Wednesday, 13 January 2016

Oink Oink...

Please use the following information to complete your Math homework:

Oink Oink...

It’s true.  We North Americans amount to a paltry 5% of the five billion people on the planet Earth.  Strangely enough, we consume 33% of the worlds resources and produce half its organic waste (1)Take lawns for example. North Americans use approximately 30 billion litres of water on their grass each day, and the average irrigated lawn uses 38 000 litres per summer.  That’s like 19 000 two litres bottles of pop on one lawn!  How about paper?  Americans use 300 kg of paper per year. People in developing nations, on average, use 18 kg per year.  People in India use four kg per year and 20 African nations use 1 kg per person per year. 

What is your guess with electric power? Nigeria uses 81 kilowatt hours (kWh) per person.  Egyptians use 217 kWh.  North Americans use 12 331 kWh on average.  Not surprising, since it’s required to run televisions (835 per 1000 people), clothes washers (owned by more than 77% of the country), and refrigerators (115 per 100 households).  Brazilians have 349 TVs per 1000 people.  In India, only 6% of people have clothes washers and there are only 12 refrigerators per 100 households. 

In terms of world energy consumption, Canada ranks seventh. The top three energy consumers (also the top three producers) are: United States, China, and Russia who together account for 43 per cent of the world’s total.

Note: The kilowatt hour, or kilowatt-hour, (symbol kW·h, kW h or kWh) is a unit of energy equal to 1000 watt hours or 3.6 megajoules.[1][2] For constant power, energy in watt hours is the product of power in watts and time in hours. The kilowatt hour is most commonly known as a billing unit for energy delivered to consumers by electric utilities.