Question

In our exploration of the space and the sun, an

important aspect is to understand how emanated gases behave when they are close to the sun…………………………………………….. The work, published in physical review letters, reveals how the electrons and ions in the comet’s body interact with the electrons and protons in the solar wind. This is interesting as comet observations have a history of revealing even the existence of the solar wind. In each of these questions, a paragraph is given that has blank in it. Five sentences (1), (2), (3), (4) and (5) are suggested. Out of these, only one fits the blank in the context of the paragraph. Pick that sentence as the answer.

A Its existence was first inferred indirectly in the 1950s by observing the shapes of comet tails.

B Only later was its existence confirmed by the mariner 2 spacecraft.

C The material of the comet and the particles in the solar wind do not actually collide.

D To study this, a simulation of a comet interacting with solar wind has been made by researchers.

E None of these

Practice Next