Fill blank (ii).

Directions: Read the following passage and fill the numbered blanks using correct option.

Asteroids are rocks and debris which are the leftovers of the construction of our solar system. Most are in a belt, which ___(i)___ between Mars and Jupiter. However, the gravitational influence of the giant planets, like Jupiter, or an impact by a comet can knock these large rocks out of their orbit, thus hurling them ___(ii)___ the Earth. Many bodies have struck Earth in the ___(iii)___, and a widely accepted theory blames the impact of an asteroid for the extinction of dinosaurs about 65 million years ago. The scale of such a disaster can be understood by the example of a relatively small-size asteroid strike in Siberia in early 20th century which ___(iv)___ more than half a million acres of forest.
However, what relieves the common, man of the ___(v)___ regarding asteroid impact is the fact that many scientific groups are dedicated towards tracking the asteroid paths and orbit all around the year. With advanced equipments and technology, they can predict any upcoming danger much in ___(vi)___.
According to them the chances of finding such an asteroid crossing Earth in this or the next five generation’s lifetime is only one in thousands. Even if such an asteroid is found out, there will be ___(vii)___ of time to track it, measure its orbit precisely, and plan a system for ___(viii)___ it from its orbit away from that of the Earth’s. There will be no great hurry, and no great panic. It would be a project for all the world’s nations to take part in. It could be a globally unifying event. Because it will be ___(ix)___ long before it actually hits the Earth. It probably would take only a small measure such as chemical rockets, or perhaps an atomic explosion to divert it from a threatening path. Thus, in short, it can be said that though the impact would pose enormous risk to all living forms on Earth, the odds of it occurring within our lifetimes is very ___(x)___ and it is unnecessary to run around believing that the sky is falling.