Catch the greenhouse gases

Exercise and reference answers

Items

1. Matches the category

   Yes

   Item

   Carbon dioxide

2. Matches the category

   Yes

   Item

   Methane

3. Matches the category

   Yes

   Item

   Nitrous oxide

4. Matches the category

   Yes

   Item

   CFCs

5. Matches the category

   No

   Item

   Oxygen

6. Matches the category

   No

   Item

   Nitrogen

7. Matches the category

   No

   Item

   Dobson unit

8. Matches the category

   No

   Item

   Polyblend

Category

Greenhouse gas

Instructions

Catch the greenhouse gases. Let the other words fall.

Explanation