Major Domains of the Earth

What are the four major domains of the earth?

• Continents, Oceans, Mountains, Rivers

• Desert, Forest, Grassland, Tundra

• Lithosphere, Biosphere, Atmosphere, Hydrosphere

• Troposphere, Stratosphere, Mesosphere, Thermosphere

Name the seven continents of the earth.

• America, South America, Australia, Artic Circle, Maitri, Portugal, Argentina

• Asia, Europe, Africa, South America, North America, Antarctica

• Australia, Antarctica, South America, Europe, Austria, Dakshin Gangotri, Russia

Name the two continents that lie entirely in the Southern Hemisphere.

• South America, North America

• Asia, Europe

• Africa, North America

• Australia, Antarctica

Name the different layers of atmosphere.

• Lithosphere, Hydrosphere, Biosphere, Atmosphere

• Troposphere, Stratosphere, Mesosphere, Thermosphere

• Desert, Forest, Grassland, Tundra

• Continents, Oceans, Mountains, Rivers

Why is the earth called the ‘blue planet’?

• Because it is the only planet with a blue atmosphere

• Due to the presence of blue colored rocks

• Because it is covered with blue colored vegetation

• Because more than 71% of the earth is covered with water

Why is the Northern Hemisphere called the Land Hemisphere?

• Because it is the hemisphere with the largest deserts

• Because it has more landmass compared to the Southern Hemisphere

• Because it is closer to the land of the Northern Pole

• Because it is the hemisphere with the highest mountains

Why is the Biosphere important for living organisms?

• It is the only source of water for living organisms

• It is the only source of oxygen for living organisms

• It provides a habitat for all living organisms

• It is the only source of food for living organisms

The mountain range that separates Europe from Asia is

• the Alps

• the Urals

• the Himalayas

• the Andes

The continent of North America is linked to South America by

• a Canal

• a Strait

• an Isthmus

• a Peninsula

The major constituent of atmosphere by per cent is

• Nitrogen

• Oxygen

• Argon

• Carbon dioxide