Daily Olympiad: Social Science - Major Domains Earth [20260729]

Solution

Correct: A

The four major domains of the Earth are Lithosphere (land), Hydrosphere (water), Atmosphere (air), and Biosphere (life). These domains interact to create the environment we live in.

Solution

Correct: C

The Lithosphere is the solid outer layer of the Earth, consisting of rocks, soil, and landforms like mountains, plateaus, and plains. It is the domain of land.

Solution

Correct: B

The Hydrosphere comprises all the water bodies on Earth, such as oceans, seas, rivers, lakes, glaciers, and groundwater. It is the domain of water.

Solution

Correct: C

The Atmosphere is the blanket of air that surrounds the Earth, composed of various gases like nitrogen, oxygen, and carbon dioxide. It is the domain of air.

Solution

Correct: C

The Biosphere is the part of the Earth where life exists. It is a narrow zone where the Lithosphere (land), Hydrosphere (water), and Atmosphere (air) meet and interact, providing suitable conditions for living organisms.

Solution

Correct: C

Asia is the largest continent in the world, both in terms of land area and population. It covers about one-third of the total land area of the Earth.

Solution

Correct: D

The Pacific Ocean is the largest and deepest ocean on Earth, covering about one-third of the planet's surface. It is also home to the deepest point on Earth, the Mariana Trench.

Solution

Correct: C

Mount Everest, located in the Himalayas, is the highest mountain peak on Earth, with an elevation of 8,848.86 meters (29,031.7 feet) above sea level.

Solution

Correct: A

The Mariana Trench, located in the western Pacific Ocean, is the deepest known oceanic trench and the deepest place on Earth. Its deepest point is called Challenger Deep.

Solution

Correct: C

Nitrogen is the most abundant gas in the Earth's atmosphere, making up approximately 78% of the air. Oxygen makes up about 21%, and other gases account for the remaining 1%.

Solution

Correct: C

The ozone layer, found in the stratosphere layer of the atmosphere, absorbs most of the Sun's harmful ultraviolet (UV) radiation, thus protecting life on Earth.

Solution

Correct: C

Oceans cover about two-thirds of the Earth's surface and contain more than 97% of all the water on Earth, making them the largest component of the hydrosphere.

Solution

Correct: D

Mountains, plateaus, and plains are major landforms that are part of the Lithosphere, which is the solid part of the Earth, encompassing its crust and upper mantle.

Solution

Correct: B

The Biosphere is the narrow zone where the Lithosphere (land), Hydrosphere (water), and Atmosphere (air) interact, creating the necessary conditions for all forms of life to thrive.

Solution

Correct: C

The Earth's surface is mostly covered by water (about 71%), while land covers approximately 29%. This distribution creates diverse environments across the globe.