Were there super continents before pangea?

892

---

Why does marble rarely contains fossils?

828

---

Do mountains exist on moon? How were they formed?

831

---

Name the minerals that attract lightning?

805

---

You want to estimate the evaporation through lakes. How would you do it?

834

---

Explain the process of formation of sedimentary rocks?

809

---

What do you mean by loam soil?

830

---

How old is the earth? How has the earth evolved since formation? How do you calculate the age of earth?

791

---

How is the age of mountains calculated?

930

---

Throw some light on water temperature in oceans and its effect on marine life.

782

---

Explain the constitution of mantle?

805

---

Explain ablation.

786

---

How does a volcano erupt?

819

---

Explain techno-fossils?

788

---

Explain valley?

798

---