Drop each fact by its element

Exercise and reference answers

Left

Nitrogen cycle

Items

1. Region

   Nitrogen cycle

   Item

   Gas in the air

2. Region

   Phosphorus cycle

   Item

   From weathering

3. Region

   both

   Item

   In nucleic acids

4. Region

   Nitrogen cycle

   Item

   Bacteria fix it

5. Region

   Phosphorus cycle

   Item

   In your bones

6. Region

   both

   Item

   In fertilizer

7. Region

   Nitrogen cycle

   Item

   Acid rain source

8. Region

   both

   Item

   Makes dead zones

Right

Phosphorus cycle

Instructions

Drag each fact onto nitrogen, onto phosphorus, or onto the overlap where it is true of both cycles.

Explanation