Define shale?

829

---

Explain what separates the outer core from the mantle above it?

764

---

Explain how do we know magma does not originate in the liquid outer core?

781

---

Explain the earth made of?

799

---

Define ablation?

839

---

Explain which kind of volcano is the most destructive?

803

---

Explain how can we calculate or estimate the evaporation from lakes?

767

---

Define happening when a metamorphic rock is forming?

871

---

How did great britain try to end troubles with the native american in 1763?

780

---

What are the examples of techno fossils?

757

---

Explain the difference between the geoid and the surface of the earth?

770

---

Explain what time period can carbon-14 dates have?

828

---

Explain what did radon detection in arid areas can help to explore?

867

---

Explain the minimum depth needed for a feature to be considered a canyon?

750

---

Explain what ways can igneous rock form two ways?

819

---