Nature
World
Solar system
100

Which season comes after spring?

Summer

100

... about percent of the Earth's surface is water-covered.

70%

100

What is called our planet?

Earth

200

Which is the biggest mammal on earth?

Whale

200

Which is the biggest ocean?

The Pacific

200

Which planet is called "Red planet"? 

Mars

300

Which bird can't fly ?

Penguin

300

Where is the coldest place on earth ?

The Antarctic

300

How many planets are there in solar system?

8 planets

400

What is the main source of energy for the earth?

The sun

400

What is the longest river on earth?

The Nile

400

Which planet is the seventh planet in our solar system?

Uranus

500

What do plants need to grow?

Water, air, sunlight, soil

500

Mount Everest's peak is the highest altitude above mean sea level at .... m

8848

500

Which planet is the furthest from the sun?

Neptune

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