Question
It has been ____________, for example, that a general
spiral pattern will result simply from the fact that the galaxy has differential rotation; i.e., the rotation speed is different at different distances from the galactic centre.Solution
In the sentence something has been done to prove a certain point, hence, for that most probably an experiment might have been conducted. Hence, ‘demonstrated’ is correct as it means ‘to present something’ using practical methods.
Which gas is produced due to incomplete combustion of fuel?
Which law explains why planets move faster when they are closer to the Sun?
Which of the following pairs of phenomena illustrate the particle nature of the electromagnetic radiation?
Alkali metals have ______.
I. low melting points
II. low densities
What is the simplest hydrocarbon?
Which is the correct IUPAC name for CH₃CH₂CH(CH₃)CH₂OH?
Magnesium oxide (MgO) + Water (H2O) = ?
What is the primary advantage of superconductors?
Compressed natural gas (CNG) primarily consists of which gas?
The reaction of an aldehyde with Tollens’ reagent results in:
