universe & solar system section 10 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Venus is smaller in size than the Earth. Diameter of earth is12,742 km while that of Venus is 12,100 km

Answer: (b)

Answer: (c)

The shortest ditance between two places on the earth surface is along the Great Circles. The property of a great circle is that a plane passed along it passes through the centre of the earth and divides it into two equal parts or hemispheres. Among the latitudes only the equator is a great circle while among longitudes all of them are great circles.

Answer: (a)

Continental Drift and Palaeomagretism forms Plate Tectonic Theory.

Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen “plates” that move around across the earth’s surface relative to each other, like slabs of ice on a lake.

Answer: (d)

Answer: (d)

• Planet Earth has been called the “Blue Planet” due to the abundant water on its surface.
• Pluto, once considered the ninth and most distant planet from the sun, is now the largest known dwarf planet in the solar system. It is also one of the largest known members of the Kuiper Belt, a shadowy disk-like zone beyond the orbit of Neptune thought to be populated by hundreds of thousands of rocky, icy bodies each larger than 62 miles (100 kilometres) across, along with 1 trillion or more comets.
• Moon is the natural satellite of Earth.
• The sun is considered a star because it has all the characteristics of one.