11) Which one of the following elements is found common in glass, cement, china clay and quartz?
(A) Carbon
(B) Silicon
(C) Calcium
(D) None of these
12) What are Vaccines?
(A) Same as monoclonal antibodies
(B) Treated bacteria or viruses or one of their proteins
(C) MHC proteins
(D) Strands of nucleic acids
13) Which of the following is an alloy?
(A) Gold
(B) Zinc
(C) Tin
(D) Bronze
14) The unit for measuring intensity of noise is called:
(A) Knot
(B) Calorie
(C) Ohm
(D) Decibel
15) Which of the following will use to remove rust stains on cloth?
(A) Kerosene oil
(B) Oxalic Acid solution
(C) Alcohol
(D) None of these
16) Crimean Peninsula is disputed between Russia and:
(A) Colombo
(B) Ukraine
(C) Kathmandu
(D) None of them
17) Gibraltar is disputed between United Kingdom and:
(A) Spain
(B) Colombo
(C) Kathmandu
(D) None of them
18) Abkhazia is disputed between Republic of Abkhazia and:
(A) Dhaka (Bangladesh)
(B) Colombo (Sri Lanka)
(C) Georgia
(D) None of them
19) The West Bank and eastern Jerusalem are disputed between Israel and:
(A) Palestinian Authority
(B) Dhaka (Bangladesh)
(C) Colombo (Sri Lanka)
(D) None of them
20) River Mekong is disputed between Thailand and:
(A) Japan
(B) Vietnam & China
(C) S.Korea
(D) China