Run the ecosystem numbers

Exercise and reference answers

Questions

1. Correct

   Under 50

   Choices

   1. Under 50
   2. 2 to 10
   3. 10

2. Correct

   2 to 10

   Choices

   1. Under 50
   2. 2 to 10
   3. 10

3. Correct

   10

   Choices

   1. Under 50
   2. 2 to 10
   3. 10

4. Correct

   49

   Choices

   1. 49
   2. 71
   3. 1

5. Correct

   71

   Choices

   1. 49
   2. 71
   3. 1

6. Correct

   1

   Choices

   1. 49
   2. 71
   3. 1

Instructions

Per cent: sunlight as PAR, PAR plants capture, energy passed on; then carbon in dry weight, oceans, air.

Explanation