GATE Questions

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A colon is used to connect two sentences when the second sentence expands, illustrates, explains, summarizes, or sharpens the first. Both sentences should be complete, and their content should be very closely related.

Example:

This girl has two favorite hobbies: watching movies and seeing how long she can hold her breathe.

Adam's Bridge is the name of the bridge between India and Sri Lanka. It is also called as Rama Setu or Rama's Bridge.

Lost, rescued are the words which gives meaning to the sentence.

For other options:

Default - Fail

Sustained - suffered  are suitable and correct pairs.

Lens is made up of Flint glass.

When two or more chemical species combine to form a single product, the reaction is said to be synthesis reaction. It is also called as Direct Combination reaction.

Here in the given options, Sodium (Na) combines with Chlorine (Cl) to form a more complex single product Sodium Chloride (NaCl).

A needle has an eye through which we keep a thread and use for stitching clothes.

In biology, Homology is defined as any characteristic of biological organisms that is derived from a common ancestor. 

Hence, Homology is evidence of Common ancestry.

The strength of an electromagnet can be increased by increasing the cross-sectional area, increasing the number of turns, increasing current supply, increasing the length of the coiled wire.