Gaseous or sedimentary cycle

Exercise and reference answers

Upper category

Gaseous

Lower category

Sediment

Items

1. Category

   Gaseous

   Item

   Carbon

2. Category

   Gaseous

   Item

   Nitrogen

3. Category

   Gaseous

   Item

   Atmosphere

4. Category

   Gaseous

   Item

   CO2

5. Category

   Sediment

   Item

   Phosphorus

6. Category

   Sediment

   Item

   Sulphur

7. Category

   Sediment

   Item

   Rock

8. Category

   Sediment

   Item

   Crust

Instructions

Send each clue to the gaseous cycle track or the sedimentary cycle track.

Explanation