Question : Which of the following statements is correct according to plate tectonics?

Option 1: A tectonic plate is a massive, regularly shaped slab of solid rock.

Option 2: The theory of plate tectonics proposes that the earth’s lithosphere is divided into seven major and some minor plates.

Option 3: Plates move vertically over the asthenosphere as rigid units.

Option 4: A tectonic plate is composed of only continental lithosphere.

Question : ____________ is the thinnest layer of Earth.

Option 1: Mantle

Option 2: Outer core

Option 3: Crust

Option 4: Inner core

Question : Concerning the biosphere reserves of India, which of the following is not a biosphere reserve?

Option 1: Dachigam

Option 2: Saurashtra

Option 3:  Agastyam

Option 4: The servant

Question : The narrow zone of contact between the lithosphere, hydrosphere and atmosphere where natural vegetation and wildlife exist is called the:

Option 1: Geosphere

Option 2: Biosphere

Option 3: Troposphere

Option 4: Exosphere

Question : Which of the following is not one of the major tectonic plates of the Earth?

Option 1: Nazca plate

Option 2: Pacific plate

Option 3: Africa with the eastern Atlantic floor plate

Option 4: India-Australia-New Zealand plate