Questions

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?

Improve the bracketed part of the sentence.
All the allegations levelled (over) the poor watchman were found to be baseless.

Depletion of ozone layer is caused by

A shopkeeper mixed two verities of rice at Rs. 40/kg and Rs.60/kg in the ratio 3: 2 and sold the mixture at 10% profit. Find the  price per kg at which he sold the mixture?

What carries Blood away from the Heart?

Where does meiosis take place in bryophytes?

What is the outcome when a cell undergoes meiosis?

India’s fastest Train18 soon to start b/w NewDelhi and which city?