Educational worksheet for learning environmental vocabulary through picture labeling and matching exercises.

I'll solve this environmental vocabulary worksheet step by step.

First, I need to understand what the task is asking. The worksheet has two main sections:
1. Labeling 12 pictures with appropriate vocabulary words from the provided list
2. Matching 4 words (gas, grass, factory, source) to their corresponding pictures and definitions

Let me start with the first section - labeling the 12 pictures.

Looking at the vocabulary words available: decrease, eco-friendly, environment, fossil fuels, global warming, greenhouse gas, grow, increase, organic, pollution, produce, run out

Now I'll analyze each picture one by one:

Picture 1: Shows recycling symbol, light bulb, and faucet - likely "eco-friendly"
Picture 2: Earth with sun rays and CO2 molecules - likely "global warming" or "greenhouse gas"
Picture 3: Plant growing from soil - likely "grow"
Picture 4: Green upward arrow - likely "increase"
Picture 5: Factories emitting smoke - likely "pollution"
Picture 6: Fuel gauge showing low fuel - likely "run out"
Picture 7: Red downward arrow - likely "decrease"
Picture 8: Landscape with river and mountains - likely "environment"
Picture 9: Oil barrel and coal pile - likely "fossil fuels"
Picture 10: Thermometer on Earth - likely "global warming"
Picture 11: Fruits and vegetables with "no pesticides" sign - likely "organic"
Picture 12: Factory/industrial equipment - likely "produce"

For the second section, I need to match:
1. gas - matches with picture of gas pump (D: a type of fuel for cars, buses, etc.)
2. grass - matches with picture of grass (C: a green plant that cows, sheep, etc. eat)
3. factory - matches with picture of factory (A: a place where they produce large number of things)
4. source - matches with picture of power plant/tower (B: place, person, or thing that something comes from)

Let me now provide the complete solution.

For the first section (labeling pictures 1-12):
1. eco-friendly
2. greenhouse gas (or global warming - both could fit, but greenhouse gas is more specific to the CO2 molecules shown)
3. grow
4. increase
5. pollution
6. run out
7. decrease
8. environment
9. fossil fuels
10. global warming
11. organic
12. produce

For the second section (matching words 1-4 to pictures and definitions A-D):
1. gas → D (picture of gas pump)
2. grass → C (picture of grass)
3. factory → A (picture of factory)
4. source → B (picture of power plant/tower)

This completes the worksheet solution.