- Super nova is when a star?
(A) Emerges
(B) Explodes
(C) Freezes
(D) Falls
17. Iron and steel structure damaged by gas?
(A) Carbon monoxide
(B) Sulphur dioxide
(C) Methane
(D) Carbon dioxide
18 Liver inflammation is caused by which disease?
(A) Cholera
(B) Typhoid
(C) Hepatitis
(D) Fluorosis
- Crude oil is heated in furnace up to?
(A) 300°C
(B) 400 °C
(C) 350°C
(D) 450°C
- The smooth endoplasmic reticulum is the area in a cell where are synthesized
(A) Lipid
(B) Protein
(C) DNA
(D) Polysaccharides
21. Paris climate conference held in?
(A) 2012
(B) 2016
(C) 2015
(D) 2017
- Rio Earth summit was held in?
(A) May 1991
(B) June 1992
(C) May 1992 23.
(D) April 1995
23. International day for desertification and drought observed on?
(A) 17th January
(B) 17th May
(C) 17th June
(D) 17th July
24. Which form of Nitrogen is taken by the producers of the eco-system?
(A) CO2
(B) N2
(C) NH
(D) NH4NO
- Pancreas produces digestive enzymes and release them into?
(A) Stomach
(C) Jejunum
(B) Duodenum
(D) Anus
26 In stomach, pepsinogen is converted to?
(A) Enzyme
(B) Pepsin
(C) Proteins
(D) Amylase
- The life of red blood cells is?
(A) 45 days
(B) 120 days
(C) 125 days
(D) 145 days
- Tube connecting kidney and Urinary bladder?
(B) Ureter (C) Nephron (D) Urination
(A) Urethra
29. “Villi’ is found in?
(A) Large intestine
(B) Small intestine
(C) Stomach
(D) Liver
30. Stomata closes when guard cells?
(A) Lose water
(B) Gain water
(C) Mutate
(D) None of these