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A bolt from (or out of) the blue - A sudden and unexpected event. Cut the mustard - Come up to expectations; reach the required standard. This idiom does not fit in the context of the second sentence, which talks about the ill effects of air pollution. The lull (or calm) before the storm - A period of unusual tranquillity or stability that seems likely to presage difficult times. Only the first and third sentences use the idioms correctly. Option C is the right answer.
How does blockchain achieve its tamper-resistant quality?
Consider the following statements.
S1: The sequence of procedure calls corresponds to a postorder traversal of the activation tree.
S...
What does below UNIX command do?
cp file1 file2
What will be the output of the code
int main(){
int array[] = {100,200,300};
cout<
}
In the context of ADTs, what does "polymorphism" refer to?
Which data structure is used for efficiently implementing dynamic sets and supports operations like insert, delete, minimum, maximum, predecessor, and ...
What is the role of a device driver in an operating system?
The truth table for a NOR gate has an output of 0 when:
Which of the following synchronization mechanisms provides a more structured approach to synchronization, allowing only one thread to access a resource...
In which protocol of email the changes made on one device will not be replicated on other?