What is coal?

450

What did radon detection in arid areas can help to explore?

427

Explain the general statement regarding the temperature of water in oceanic depths?

413

Explain how the asthenosphere works?

427

Describe the formation of metamorphic rocks?

432

What does a geologist do on a typical day?

545

What is roasting?

417

what's the difference between 'soft' rock and 'hard' rock geology?

454

What is potash?

447

Explain what ways can igneous rock form two ways?

462

What is the mantle made of?

462

What is the difference between a semi-precious and a precious stone?

445

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

443

What is drift (or drive)?

434

what is applicable Mineral sometines are showing fluorescence

1692