Posted by **ScienceConfusion** on Saturday, November 21, 2009 at 9:10pm.

HELP PLEASE!!! ESPECIALLY PART 2

2. The following questions do not require the data above. Answer with the data given in each question.

i. There is a total of approximately 12.4 billion acres of agricultural land (cropland, rangeland, irrigated land) on the major continents. Given that the average Net Primary Productivity (NPP) of agricultural land is approximately 2900 kcal m-2 y-1 calculate the annual global NPP associated with these lands (your answer should be reported in SI units, i.e. Joules) [2 marks]

ii. Assume that animals (humans and domesticated animals) have a 10% energy conversion efficiency and that we need approximately 2800 kcal d-1 to survive. How many i) Human Vegetarians and ii) Human Omnivores could the planet presently support (for simplicity assume that 50% of the energy content of the omnivore diet comes from meat or meat products). Comment on the implication of this calculation. [4 marks]

## Answer This Question

## Related Questions

- science - HELP PLEASE!!! ESPECIALLY PART 2 2. The following questions do not ...
- Another Math Statistical Question - Assume Coca Bottling is a company producing ...
- Statistics - 2. Any given data set consists of a set of numerical values. Please...
- economics (4) - Assume that the following data describe the condition of the ...
- Economics (4) - Assume that the following data describe the condition of the ...
- economics (4) - Assume that the following data describe the condition of the ...
- math - 10. For questions 10-13, use the following data: 13 29 41 60 89 14 26 53...
- college math - 10. For questions 10-13, use the following data: 13 29 41 60 89 ...
- mathhhhh - 1) There is a total of approximately 12.4 billion acres of ...
- math - 4. For Questions 4-7, use the following data: The number of file ...

More Related Questions