926: Which of the following cell organelles play the most significant role in protein synthesis ?
(a) Lysosome and Centrosome
(b) Endoplasmic reticulum and Ribosome
(c) Golgi apparatus and Mitochondria
(d) Lysosome and Mitochondria
927: The sportsperson Soma Biswas is associated with
(a) Sailing
(b) Hockey
(c) Golf
(d) Athletics
928: Bimbavati Devi is a well-known dancer of which type of dance ?
(a) Manipuri
(b) Odissi
(c) Bharat Natyam
(d) Kuchipudi
929: Consider the following statements :
Chlorofluorocarbons, known as ozone-depleting substances, are used
1. in the production of plastic foams
2. in the production of tubeless tyres
3. in cleaning certain electronic components
4. as pressurizing agents in aerosol cans
Which of the statements given above is/are correct?
(a) 1, 2 and 3 only
(b) 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
930: Assertion (A) :
The surface winds spiral inwards upon the centre of the cyclone.
Reason (R) :
Air descends in the centre of the cyclone.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true