SST and History Notes XI- XII

SST (VII)-LESSON-2 (PART-1)

OCEANS AND CONTINENTS

 (QUESTION ANSWERS)

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        NCERT QUESTION ANSWERS

1. Explain the following terms:

(a) Continent

Answer:

• A continent is a large continuous expanse of land on the Earth.
• Continents together form the major landmasses of the world.
• There are seven commonly accepted continents:
• Asia
• Africa
• North America
• South America
• Europe
• Australia
• Antarctica
• Continents differ in size, climate, population, and natural features.
• Asia is the largest continent, while Australia is the smallest continent.

SOCIAL SCIENCE -VII- CHAPTER 2:

UNDERSTANDING THE WEATHER

(LESSON NOTES)

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 v Introduction to Weather

Ø Weather refers to the state of the Earth’s atmosphere at a particular time and place.

Ø The atmosphere is the layer of gases (air) that surrounds the Earth.

§  The troposphere is the lowest layer of the atmosphere where:

·       Humans, animals, and plants live.

·       Almost all-weather phenomena occur.

Ø The height troposphere is 6 to 18 kilometres from the ground. Its thickness varies:

UNDERSTANDING WEATHER

🌦️ UNDERSTANDING WEATHER