universe & solar system section 13 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 26

Scientists have determined the temperature near the Earth’s center 1,000°C hotter than was reported in an experiment run 20 years ago. The actual temperature is?

a) 4,000° Celsius

b) None of these

c) 5,000° Celsius

d) 6,000° Celsius

Question : 27

Unlike other Meridians International Date Line is drawn zigzag in order to

a) adjust the day in calendar while sailing from east to west and vice versa

b) make 180°E and 180°W coterminous

c) facilitate the sailors to adjust time in their watch

d) permit certain land areas and groups of islands to have the same calendar day

Question : 28

How much is the approximate time gap between two successive high tides ?

a) 11.5 hours

b) 12.5 hours

c) 9 hours

d) 6 hours

Question : 29 [IAS (Pre) 1998]

Consider the following statements regarding asteroids.

1. Asteroids are rocky debris of varying sizes orbiting the Sun.
2. Most of the asteroids are small but some have diameter as large and 1000 km.
3. The orbit of asteroids lies between the orbits of Jupiter and Saturn.

a) 1 and 2 are correct

b) 1 and 3 are correct

c) 2 and 3 are correct

d) 1, 2 and 3 are correct

Question : 30 [PCS (Pre) 2005]

Choose the odd one.

a) Moon

b) Earth

c) Mercury

d) Mars