Step 1: 💧 Water and 🌬️ Wind

Combine 💧 Water and 🌬️ Wind to create 🌊 Wave

Step 2: 🌬️ Wind and 🌬️ Wind

Next, combine 🌬️ Wind and 🌬️ Wind to create 🌪️ Tornado

Step 3: 💧 Water and 🌍 Earth

Then, combine 💧 Water and 🌍 Earth to create 🌱 Plant

Step 4: 🌍 Earth and 🌬️ Wind

Now, combine 🌍 Earth and 🌬️ Wind to create 🌫️ Dust

Step 5: 🌊 Wave and 🌊 Lake

And then, combine 🌊 Wave and 🌊 Lake to create 🌊 Tsunami

Step 6: 🌫️ Dust and 💧 Water

As next step, combine 🌫️ Dust and 💧 Water to create 💩 Mud

Step 7: 🌫️ Dust and 🌍 Earth

Combine 🌫️ Dust and 🌍 Earth to create 🪐 Planet

Step 8: 🌪️ Tornado and 🌫️ Dust

Combine 🌪️ Tornado and 🌫️ Dust to create 🌪️ Dust Storm

Step 9: 💧 Water and 💧 Water

Combine 💧 Water and 💧 Water to create 🌊 Lake

Step 10: 🔥 Fire and 🔥 Fire

Combine 🔥 Fire and 🔥 Fire to create 🌋 Volcano

Step 11: 🌋 Volcano and 🌫️ Dust

Combine 🌋 Volcano and 🌫️ Dust to create 🌋 Ash

Step 12: 🌫️ Dust and 🌱 Plant

Combine 🌫️ Dust and 🌱 Plant to create 🌱 Pollen

Step 13: 💩 Mud and 🌊 Tsunami

Combine 💩 Mud and 🌊 Tsunami to create 🌋 Mudslide

Step 14: 🌪️ Dust Storm and 🪐 Planet

Combine 🌪️ Dust Storm and 🪐 Planet to create 🪐 Mars

Step 15: 🌋 Volcano and 🌊 Lake

Combine 🌋 Volcano and 🌊 Lake to create 🏝️ Island

Step 16: 🌱 Pollen and 🌋 Ash

Combine 🌱 Pollen and 🌋 Ash to create 🤧 Cough

Step 17: 🪐 Mars and 🌋 Mudslide

Combine 🪐 Mars and 🌋 Mudslide to create 🍫 Mars Bar

Step 18: 🤧 Cough and 🏝️ Island

Combine 🤧 Cough and 🏝️ Island to create 😷 Tuberculosis

Step 19: 😷 Tuberculosis and 🍫 Mars Bar

Combine 😷 Tuberculosis and 🍫 Mars Bar to create 🍫 Snickers