● Caspian Sea is the largest lake in the world in terms of surface area.

● It is located between the continents of Europe and Asia.

● It is the world's biggest enclosed inland water body, with a total surface area of 371,000 square kilometers.

• The first Round Table Conference convened from 12 November 1930 to 19 January 1931.

• The second Round Table Conference was held in London from 7^th September 1931 to 1^st December 1931 with the participation of Gandhi and the Indian National Congress.

• The third Round Table Conference was held from 17^th November to 24^th December 1932. It was not attended by the Indian National Congress and Gandhi.

• B.R. Ambedkar and Tej Bahadur Sapru took part in all the three round table conferences.

● The president of India can be removed by the process of impeachment.

● He is the ceremonial head of state of India and the Commander-in-chief of the Indian Armed Forces.

● Impeachment is the process by which a legislative body addresses charges against a government official.

● Beriberi is caused by deficiency of Vitamin B1.

● There are two types of the disease

1) Wet beriberi

2) Dry beriberi

● Wet beriberi affects the cardiovascular system and Dry beriberi affects the nervous system.

So, the person in portrait is mother-in-law of Seema.

Hence, option B is correct answer.

Distance travelled by car in 40 minutes = 64 km/h × 40/60 = 128/3km

Speed required by car to travel the distance in 30 minutes = (128/3) ÷ (30/60) = (128/3) ÷ (1/2) = 256/3 = 85.33 km/h

Since √3a=√27

√3a=3√3

a=3 cm

Therefore, reqd. volume will be

a³=3³= 27 cm³

Hence, figure C is the right image of the given figure.

Option D has the grammatically incorrect part.

• The given sentence is in the simple past tense. 
  
• Thus, we will use the past form of the verb 'come'.
  
  
• Thus, replace 'come' with the V2 form 'came'.

Let's understand the meaning of the given words:

Chamber = a room used for a special or official purpose

Apartment = a set of rooms for living in that includes a kitchen and a bathroom

Dormitory = a large bedroom for a number of people in an institution.

Auditorium= a large room, hall, or building that is used for events such as meetings and concerts

Hence, option C is the correct answer.