Questions

A shell is an interactive user interface to an operating system services that allows an user to enter commands as character strings or through a graphical user interface. The shell converts them to system calls to the OS or forks off a process to execute the command. System call results and other information from the OS are presented to the user through an interactive interface. Commonly used shells are sh,csh,ks etc.

All statements except ‘A’ are based about the same theme which is The Fight for Ocean Health while sentence A talks about The Next Phase of Climate Action.

An Hourglass has two bodies joined together on standing still it ran from one to the other.

The main difference lies in the motive of the two parties. The main motive of the hedger is to hedge(minimize) the risk from the occurence of some events. 

The motive of the speculator is to gamble in the market in order to make the profit by buying/selling the derivative products.

Study of Life in outer space or search of life external to Earth is known as Exobiology.

Ctrl+Shift+F Opens the Font dialog box with the focus at the Font combo box.

Most of the known extrasolar planets resembles the planet Jupiter in the solar system.