105301. How much of the surface of the Moon is visible from the Earth?
105302. The rate of rotation of the Earth on its axis is highest on?
105303. The South Pole experiences continuous light at the time of?
105304. Which is the centre of the Solar System?
105305. The Earth is believed to have condensed out of interstellar gas and dust for about how many years ago?
105306. How many days does the Moon take to return to the same position among the constellations?
105307. The Earth revolves around the Sun at a speed of?
105308. If the Earth had no satellite of its own (i.e. the Moon), which of the following phenomena will not occur?
105309. A star which explodes and throws off a bright outer shell of gas is known as?
105310. The biggest star in our galaxy is?
105311. The nearest star to Earth (excepting the Sun) in our galaxy is?
105312. Which of the following planets takes very nearly the same time for a rotation on its own axis as does the Earth?
105313. In which year did man first step out on the moon?
105314. The largest number of natural satellites (or moons) that any one of the planets of the Solar System has is?
105315. How many hydrogen nuclei combine to form a nucleus of helium in the Sun, with an attendant release of a gamma-ray photon?
105316. Titan, the largest Moon in the Solar System, is also the largest Moon of?
105317. What name is given to the path of the Sun amongst the stars in our galaxy?
105318. The visible part of the Sun is called?
105319. When and by whom were the rings of Saturn discovered?
105320. In the sixteenth century, the king of Denmark built for the use of a famous scientist, the finest observatory in the world on an island near Copenhagen and called it the City of the Heavens. Who was this scientist?
105321. The Sun shines vertically on the Equator?
105322. .The speed per minute at which the Earth revolves round the Sun is?
105323. 'The Earth's annual circuit round the Sun covers a distance of?
105324. Even though Pluto is usually the farthest planet, its path is highly elliptical, crossing inside the path of some other planets. As a result, for a period of twenty years from I 979, the farthest planet is not Pluto, but?
105325. Which of the following is the brightest star in our Solar System?
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