Geography

1. Sustainability

1.1. Cartoons

1.1.1. Uses symbols

1.1.2. Easy to understand

1.1.3. Interesting

1.1.3.1. Funny

1.2. Issues

1.2.1. Food Waste

2. Geology

2.1. Types of rock

2.1.1. Metamorphic

2.1.1.1. subjected to heat or pressure

2.1.1.2. types of rock

2.1.1.2.1. Slate

2.1.1.2.2. Marble

2.1.2. Sedimentary

2.1.3. Ingeous

2.1.3.1. types of rock

2.1.3.1.1. Basalt

2.1.3.1.2. Granite

2.1.3.1.3. Obsidian

2.1.3.1.4. Pumice