Q7 Why is the Earth called blue planets.
Q8 Differentiate between the internal and external process.
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1. Earth is our home. It is also the only planet with oceans. In fact, Earth is covered mostly with water. That is why it is called the Blue Planet.Earth is called the blue planet because 71% of earth is covered with water which makes earth appear blue from the space. Oceans covers the earth mostly. Out of this much water only 0.02 of water is suitable for drinking.
2. External processes take place on the earth's surface. The internal process takes place inside/ within the earth's surface.
External process occur on the surface of the earth .
It is slow change .
Ex- change in leevel of the earth .
Internal process occur inside the surface of the earth .
It is sudden change .
Ex -earthquake activities.
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? Why is the Earth called blue planets.
= Earth is our home. It is also the only planet with oceans. In fact, Earth is covered mostly with water. That is why it is called the Blue Planet.
? Differentiate between the internal and external process.
= External processes take place on the earth's surface
. The internal process takes place inside/ within the earth's surface
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