31. Which is responsible for blood clotting
(A) Lymphocytes
(B) Monocyte
(C) Platelets
(D) Red blood cells
32. Enzymes are made up of?
(A) Vitamins
(B) Carbohydrates
(C) Minerals
(D) Proteins
33. Edward Jenner discovered vaccine in which year?
(A) 1796
(B) 1976
(C) 1980
(D) 1767
34. After fertilization in plants, the fruit develops from?
(A) Stigma
(B) Anthers
(C) Ovary
(D) Petals
35. Parthenocrapy results in?
(A) Sweet smelling fruits
(B) Seedless fruit
(C) Summer fruits
(D) Small fruits
36. Deficiency of Vitamin D causes?
(A) Scurvy
(B) Rickets
(C) Night blindness
(D) fibrosis
- Ethiopia face severe famine in the period?
(A) 1883-1885
(B) 1983-1985
(C) 1993-1995
(D) 1997-2000
38. Mastication is also known as
(A) Assimilation of food
(B) Absorption of food
(C) Excretion of food
(D) Chewing of food
- In composition of water in human brain is?
(A) 25 %
(B) 50 %
(C) 75%
(D) 95 %
40. Dengue fever is caused by the mosquito?
(A) Aedes aegypti
(B) Anopheles gambiae
(c) Culex pipiens
(D) None of these
41. Who gave the idea of world food programme?
(A) Pope Francis
(B) Trygve Lie
(C) Kofi Annan
(D) George McGovern
42. Speed of sound in air is approximately?
(A) 300 m/s
(B) 600 m/s
(C) 1200 m/s
(D) 2400 m/s
- Who transmitted the 1st radio signal through the air?
(A) Nikola Tesla
(B) Guglielmo Marconi
(C) Alexander Graham Bell
(D) Samuel Morse
44. How much space a standard CD contains?
(A) 600 MB
(B) 650 MB
(C) 680 MB
(D) 700 MB
45. Concept of meaning represented by algorithm is known as?