19th Mar, 2020
Q1. The ___________ forms the relatively cool, brittle plates of plate tectonics.
Q2. ------------------rocks form by crystallization and consolidation of molten magma.
Q3. In correct order from the center outward, Earth includes which units?
Q4. Identify the thinnest layer of the Earth?
Q5. Which of the following mineral is composed of silicon dioxide (SiO2)?
Q6. Which of the following two elements contain in all silicate minerals?
Q7. Identify the type of chemical bonding in which electrons are shared between adjacent atoms?
Q8. Exfoliation is the form of
Q9. Palaeontology is the study of
Q10. What is the radial extent of core of earth?
Q11. Identify the rocks which contributes the highest amount of radioactive heat in the earth's crust?
Q12. The decent of oceanic lithosphere into mantle is known as
Q13. The process by which an originally homogeneous earth developed a dense core and a light crust is called:
Q14. Which isn't chemical or organic sedimentary rocks?
Q15. Which of the following isn't a type of sandstone?