CBSE Questions for Class 6 Geography Major Domains Of The Earth Quiz 1 - MCQExams.com

• The Palk Strait is a strait between the Tamil Nadu state of India and the Jaffna District of the Northern Province of Sri Lanka. It connects the Bay of Bengal in the northeast with Palk Bay in the southwest.
  

• The world's longest above-water mountain range is the Andes, about 7,000 km long. It cuts across seven South American countries of Argentina, Ecuador, Venezuela, Colombia, Peru, Bolivia, and Chile.
  

• Dakshin Gangotri was the first scientific base station of India situated in Antarctica, part of the Indian Antarctic Program. It is an unmanned station. Dakshin Gangotri was built in 1983 but was buried in ice and abandoned around 1991.
  

• Uralskiye gory, or simply the Urals are mountain ranges that run through western Russia forming a natural divide between Europe and Asia.
  

Earth mainly consists of four layers namely crust, mantle, outer core and inner core.

Lithosphere is the rigid outer layer of the earth which includes crust and uppermost mantle.

Crust: This is about 8 km thick inside and is highly explored. The continental crust is composed mostly of granite. The oceanic crust consists of a volcanic lava rock called basalt.

Mantle: It is composed mostly of silicate rocks rich in magnesium and iron.

• After Dakshin Gangotri, India in 1989 set up its permanent research base, Maitri, as part of the Indian Antarctic Programme. In 2012, another base was commissioned, called Bharati.

The solid portion of the earth is called the Lithosphere. It comprises the rocks of the earth’s crust and the thin layers of soil that contain nutrient elements which sustain organisms.

North America is the third largest continent of the world. It is linked to South America by a very narrow strip of land called the Isthmus of Panama.