General Physica...

Consider the following statements:
(1) The distance from the Sun to Earth is called as an Astronomical Unit (AU).
(2) The Moon is probably created by a collision with a huge planetesimal more than 4 billion years ago.
Which of the statements given above is/are correct?

Consider the following statements:
(1) Asteroids are made of mineral compounds, especially those containing iron, carbon and silicon.
(2) The belt separates the first region of the Solar system from the second.
Which of the statements given above is/are correct?

When we consider $${15}^{o}$$ meridian on a world map or globe and count them in an Eastward direction starting with Greenwich Meridian ($${0}^{o}$$) we find that the time of this meridian is ___________.

Consider the following statements:
(1) Since, Venus is seen in the East in the morning and in the West in the evening, it is called 'morning star' as well as 'evening star'.
(2) The Earth looks blue when seen from the outer space due to the presence of large amount of water, hence it is called 'blue planet'.
Which of the statements given above is/are correct?

Consider the following statements:
(1) International Date Line lies on the Greenwich Meridian.
(2) The date of Alaska is ahead of the date of Siberia.
Which of the statements given above is/are correct?

Consider the following statements:
(1) Mars is tilted at $${23}^{o}$$ in the same way as the Earth, so experiences four seasons as Earth.
(2) Like Earth, Mars has polar ice caps.
(3) Mars has two Moons.
Which of the statements given above is/are correct?

Most of the communication satellites today are placed in a geostationary orbit. In order to stay over the same spot on the Earth, a geostationary satellite has to be directly above the ___________.

Consider the following statements:
(1) Type I Supernova occurs in binary star systems in which gas from one star fails on to a white dwarf, causing it to explode.
(2)Type II Supernova occurs in stars ten times or more as massive as the Sun, which suffer run away internal nuclear reactions at the ends of their lives, leading to an explosion.
Which of the statements given above is/are correct?

The summer and winter seasons in a year are caused by ___________.

Ozone holes are more pronounced at the ___________.