It takes a lot of oomph to launch a satellite into space The rocket rsquo s motors account for some ...........

English ( Master) Paragraph Completion

It takes a lot of oomph to launch a satellite into space. _________________________. The rocket’s motors account for some of the rest, but the bulk of it consists of the propellants and the gubbins needed to handle these propellants (tanks, pumps, valves, piping and the bodywork that contains them).

This is exactly what those behind what they call the “autophage” rocket hope to achieve.

At launch, the engine will sit at the base of this cylinder, but by the time the craft reaches orbit, it will have consumed the rocket’s structure.

The fuel and oxidant that react to produce the thrust required to reach orbit.

Typically, the payload represents only about 5% of the mass of a rocket as it leaves the launch pad.

None of the above

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Explanation:

Correct Answer is (d).The first line talks about how it takes effort to launch a rocket. The line after the blank talks about accounting for some of the ‘rest’. We need to find a line that gives meaning to this phrase.
Option A can be eliminated as ‘they’, ‘hope to achieve’ etc do not go with the context.
Option B is incorrect as it distorts the continuity of the passage and takes it in a different direction.
Option C is also incorrect for the same reason.
Option D is correct. The ‘ ‘mass’ being talked about here is the ‘rest’ mentioned in the next statement.
Hence, option D is correct.