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Earth presently has 1.4 billion hectares of arable land, and each hectare produces between 1 and 2 tons of grain annually. What is the amount of grain (in tons/yr) produced annually? tons/yr If every human being became vegetarian (as feeding livestock and consuming the products of livestock is far less efficient), then 200 kg of grain would be sufficient to feed each human being on the planet. Based on this data, what is the number of people Earth can support? (Use your value for the amount of grain produced annually. ) people

Earth presently has 1.4 billion hectares of arable land, and each hectare produces between 1 and 2 tons of grain annually. What is the amount of grain (in tons/yr) produced annually? tons/yr If every human being became vegetarian (as feeding livestock and consuming the products of livestock is far less efficient), then 200 kg of grain would be sufficient to feed each human being on the planet. Based on this data, what is the number of people Earth can support? (Use your value for the amount of grain produced annually. ) people

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Earth presently has 1.4 billion hectares of arable land, and each hectare produces between 1 and 2 tons of grain annually. What is the amount of grain (in tons/yr) produced annually? tons/yr If every human being became vegetarian (as feeding livestock and consuming the products of livestock is far less efficient), then 200 k g of grain would be sufficient to feed each human being on the planet. Based on this data, what is the number of people Earth can support? (Use your value for the amount of grain produced annually.) ◻ people

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Grading for Numeric Answers Tolerance Some numeric answers to questions need to be exact. For example, the answer to the question "How many days are in a week?" must be exactly 7. In general though, numeric answers are graded as correct if they fall within an acceptable range (or tolerance) of the official correct answer. For example, if the answer to a numeric problem with a tolerance of 2% was 105, then entering any value between approximately 103 and 107 would be graded as correct, as shown in the region shaded green below. The typical grading tolerance in Mastering is 2-3%, although this value may vary (e.g. more lenient) depending on the particular problem. A number line is marked at 100, 105, and 110, where 105 is the properly-rounded answer. A green shaded region extends beyond 105 by 2 percent of this value in each direction. 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Solution
2 0

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Solution
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