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प्रश्न
Provide reliable evidence to prove that the earth is spherical in shape.
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उत्तर
The earth can be clearly seen spherical in the photographs from the satellite. Other proofs are the sight of the mast of a ship first before the ship appears, varying heights of the poles fired at different places at an interval of 5 km, through the Bedford Level Experiment and the sight of Pole Star at 90° from the North Pole and the view of the earth’s horizon as a circular from higher altitudes.
संबंधित प्रश्न
What is the earth’s mean temperature?
Short Answer Question:
Why is the planet Venus hotter than the planet Mercury?
Study the picture and answer the questions that follow.
(a) What is meant by the Solar System?
(b) Give two differences between a planet and a star.
(c) Name the planets known as terrestrial planets.
(d) Give two advantages the earth has over other planets.
(e) What are satellites?
Arrange the nine planets of the solar system in order of their sizes.
Distinguish between the following pair.
Superior and Inferior planets.
Why is the following planet not inhabitable?
Saturn
Describe the position of the Earth in the Solar System.
In the picture below, correct the sequence of the planets from the sun.
The continent _____________ is covered by ice.
Distinguish between Rotation and Revolution?
