What is lithosphere?
Explain the earths crust made of?
You want to estimate the evaporation through lakes. How would you do it?
What is petroleum?
Explain what layer of the earth does magma form?
What is the cambrian?
Explain why does marble rarely contain fossils?
What is aggregates?
What is anode?
Explain how can we calculate or estimate the evaporation from lakes?
Throw some light on water temperature in oceans and its effect on marine life.
What is the difference between a canyon, gorge, and valley?
Explain what ways can igneous rock form two ways?
How has the earth evolved since formation?
How is the age of mountains calculated?