Questions

A search engine is a set of programs which enables users to search documents and files ihe world wide web.

Common search engines are Google, Yahoo, Bing,...

A seconds pendulum is a pendulum whose period is precisely two seconds i.e, one second for a swing in one direction and one second for the return swing.

Egg.

Egg is to be broken if we want to use or eat it.

The Indian Space Research Organisation is the space agency of the Government of India was set up in the year 1969, headquartered in the city of Bangalore. Its vision is to "harness space technology for national development while pursuing space science research and planetary exploration.

The objects through which light cannot pass are called as Opaque objects. Some objects allow some light to pass through them and are called as Translucent objects. The objects which allow all the light to pass through them are called as Transparent objects.

Here in the given options Book is an example of opaque object as it does not allow light to pass through it. Water is transparent object and notebook paper and sun glasses are examples of translucent objects.