Were there super continents before pangea?

963

---

Why does marble rarely contains fossils?

881

---

Do mountains exist on moon? How were they formed?

866

---

Name the minerals that attract lightning?

844

---

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

882

---

Explain the process of formation of sedimentary rocks?

845

---

What do you mean by loam soil?

875

---

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

823

---

How is the age of mountains calculated?

988

---

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

834

---

Explain the constitution of mantle?

850

---

Explain ablation.

835

---

How does a volcano erupt?

872

---

Explain techno-fossils?

820

---

Explain valley?

878

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