How do minerals turn into rocks?
what is animal charcoal?
What is hardness scale?
What is aggregates?
How do minerals become rocks and rocks become soil?
Explain what time period can carbon-14 dates have?
What are the examples of techno fossils?
Explain what separates the outer core from the mantle above it?
What are the major factors that influence mass movements.
Explain why does a glacier move?
What is the earth made of?
Explain how are fossils formed?
What is pyrite?
What is asthenosphere?
Explain which is the largest reef?