Natural resources bingo

Exercise and reference answers

Clues and terms

1. Clue

   Earth's outer crust.

   Item

   Lithosphere

2. Clue

   Where air, water and land meet life.

   Item

   Biosphere

3. Clue

   Daytime wind from sea to land.

   Item

   Sea breeze

4. Clue

   Visible sign of air pollution.

   Item

   Smog

5. Clue

   Pollution indicator on tree bark.

   Item

   Lichen

6. Clue

   Decayed organic matter in soil.

   Item

   Humus

7. Clue

   Layer with humus and life.

   Item

   Topsoil

8. Clue

   Home of nitrogen fixers.

   Item

   Root nodule

9. Clue

   Heat-trapping effect.

   Item

   Greenhouse

Instructions

Read each clue and tap the term it describes.

Explanation