Questions

Group 1 metals are also called as alkali metals with reactive in nature and low melting points. They are soft and produce hydrogen and alkaline metal hydroxide solution when they react with water.

The idiom “blow off steam” means to express one’s anger, usually noisily and harmlessly, thereby relieving one’s tension. The above sentence states that one should not waste one’s time and utilise it in releasing negative energies to get charged up. Only option 1 goes with this meaning, hence option 1 is correct.

2016 Australian Open –Men's Singles. Novak Djokovic was the defending champion and successfully defended his title, defeating Andy Murray, 6–1, 7–5, 7–6 in arematch of the previous year's final, and the fourth Australian Open final between the pair.

compiler is used to translate the high-level language program into machine code at a time. It doesn't require special instruction to store in a memory, it stores automatically. the execution time is less compared interpreter.

A compiler is a program that translates a source program written in some high-level programming langualge (such as Java) into machine code for some computer architecture (such as the Inter Pentium archiecture).