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Question
Give a reason for the following:
Earth has the most ideal temperature conditions.
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Solution
Earth has the most ideal temperature conditions because it is neither too close nor too distant from the sun. This position in the Solar System makes it possible to receive neither excessive nor totally deficient heat from the Sun. Its average temperature surface temperature is 17 degrees Celsius for more favourable for living conditions than about 500°C on the nearest planets and about 150° to 200° Celsius below freezing point on the sunlit sides of distant planets. Earth is, thus, neither a burning furnace nor an extremely cold planet.
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Short Answer Question:
Distinguish the earth from the other planets in one important aspect.
Fill in the blanks:
The earth rotates from ____ to ____.
Which planet is known as the ‘red planet’?
Why is the following planet not inhabitable?
Jupiter
Why is the following planet not inhabitable?
Saturn
Which is the unit adopted for measuring the distance in the Universe? Give a reason for its choice.
Give reasons for the following:
Pluto is the coldest planet.
Who am I?
I have my own light. It is only from me that the planets get light and heat.
______ is called Earth’s twin.
Match the following.
| 1 | Asia | Vatican city |
| 2 | Africa | Amazon rainforest |
| 3 | Europe | Sahara desert |
| 4 | South America | Kangaroo |
| 5 | Australia | Biggest continent |
