Major Domains Of The Earth
Major Domains Of The Earth Facts To Remember
Earth’s surface is divided into continents and oceans.
- Mount Everest is the highest peak at 8,848 m and Mariana Trench in the Pacific Ocean is the deepest place at 11,022 m.
- There are seven continents
- Asia, Africa, North America, South America, Antarctica, Europe and Australia.
- The continents of Asia and Europe together are known as Eurasia.
- There are five oceans—Pacific, Atlantic, Indian, Southern and Arctic. All are
interconnected. - 71% of the earth is covered with water and 29% with land.
- 97% of water is in oceans.
- The Pacific Ocean is circular and the Atlantic is “S” shaped.
- Atmosphere has 5 layers—troposphere, stratosphere, mesosphere, thermosphere and exosphere (TSMTE).
- The atmosphere comprises 78% nitrogen, 21% oxygen, and 1% other gases like C02, argon, dust particles, etc.
- The greater part of the land lies in the northern hemisphere.
- The density of air and temperature decreases as we go up.
- Edmund Hillary (New Zealand) and Tenzing Norgay, a Sherpa (Nepal) were the first men to climb the highest mountain peak Mt. Everest on the planet Earth on 29th May 1953.
- Junko Tabei (Japan) was the first woman to reach the summit on 16th May 1975.
- Bachendri Pal was the first Indian woman to climb the highest peak on 23rd May 1984.
Major Domains Of The Earth Keyword
Major Domains Of The Earth Objective Type Questions And Answers
Question 1. Fill in the blanks with appropriate words.
(1). Narrow zone where land, water and air are found is called __________.
Answer: Biosphere
(2). _________ links North America to South America.
Answer: Isthmus of Panama
(3). Emission from _______ and ________ leads to air pollution.
Answer: Industries; vehicles
(4). Arctic Ocean is connected with the Pacific Ocean through _________.
Answer: Bering Strait
(5). Pacific Ocean is _______ shaped and the Atlantic is _________ shaped.
Answer: Circular, “S”.
Question 2. Match the contents of Column A with that of Column B.
Answer: 1-(d), 2-(c), 3-(f), 4-(e), 5-(a), 6-(b)
Question 3. Q. 3. State whether the given statements are true or false.
(1). Asia lies in the eastern hemisphere.
Answer: True
(2). Discharge of waste into rivers, and lakes makes them suitable for human use.
Answer: False
(3). As we go up the density and temperature of air increases.
Answer: False
(4). The atmosphere is composed of 78% nitrogen and 21% oxygen.
Answer: True
(5). South America is the third largest continent
Answer: False.