Questions

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

An ornamented staff carried by rulers on ceremonial occasions as a symbol of sovereignty

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

A person who talks too much of himself.

Which of the following is present in a prokaryotic cell?

Which element has the lowest ionization energy?

Which one of the following is the correct relation between the Kelvin temperature (T) and the Celsius temperature (fc)?

When was Indian Navy Act passed?

Which voting method was discontinued in 2000?

A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives.

The quest to find life outside the solar system got a big boost with the discovery of seven Earth-size extra-solar planets, or exoplanets, orbiting a dwarf star about 40 light years away. Unlike earlier discoveries of exoplanets, all seven planets could possibly have liquid water — a key to life as we know it on Earth — with three planets having the greatest chance. This is by far the largest collection of Earth-like planets in the habitable 'Goldilocks' zone of a star — neither too close nor too far from a star, which raises the possibility of liquid water being present on the surface. Only Earth has liquid water in the solar system. Since the dwarf star is much cooler than the Sun, the dimming of light each time a planet passes or transits before the star could be easily recorded from Earth unlike in cases when planets transit a Sun-like bright star. Since the initial discovery of three planets was made using the Chile-based Transiting Planets and Planetesimals Small Telescope, the exoplanet system is called TRAPPIST-1.

What is the 'Goldilocks' zone?