Questions

Main memory works in conjunction with CPU.

Public relations includes promotional activities that work to create a strong public image of the company. Public relations activities include helping the public to understand the company and its products. Public relations if done right can reach a large audience without the expensive cost of traditional advertising and marketing.

Goa

17C2 = 136 (combination)

Cohesion refers to attraction between molecules of the same kind while adhesion refers to attraction between different kinds of molecules

In the above given sentences, only option C) The hen has laid 10 eggs is gramatically correct.

A) Not correct - We had gone to the party last night

Correct - We went to the party last night

B) Not correct - I have seen him yesterday

Correct - I saw him yesterday (We do not use the present perfect tense with past time expressions.)

D) Not correct - She is sleeping for 2 hours

Correct - She has been sleeping for two hours. (We use the present perfect continuous tense to show duration.)

The Aufbau Principle states that in the ground state of an atom, an electron enters the orbital with lowest energy first and subsequent electrons are fed in the order of increasing energies.