Question 1. Jonas Salk is known for the discovery of________.
(A) Smallpox vaccine
(B) Polio vaccine
(C) Cholera vaccine
(D) None of the above
Question 2. Which one of the following is not correctly matched?
(A) Antrachitic – Calciferol
(B) Antiseptic – Aspirin
(C) Antifoaming – Polyamides Silicones
(D) Antipyretic – Paracetamol
Question 3. Who discovered bacteria?
(A) Leeuwenhoek
(B) Temin
(C) Lamble
(D) Fleming
Question 4. Which of the following is a common adulterant of mustard oilseeds?
(A) Prickly seeds
(B) Cumin seeds
(C) Poppy seeds
(D) None of the above
Question 5. Which of the following is used in I-world war?
(A) Phosgene
(B) Methyl cyanide
(C) Mustard gas
(D) Luciste
Question 6. The final Agent Orange raid in Vietnam took place in 1970 areas have begun to bloom again. But 19 years after the end of the war, it seems plain that Agent Orange is killing and maiming human beings, something it never intended to do. The apparent toxic fallout from those clouds is a crop of human miseries including cancers, miscarriages and birth defects that may persist for decades. The offensive substance referred to in this quotation is ___________.
(A) Dioxin used as defoliants
(B) A complex mixture of DDT and other insecticides used as aerial sprays for protection against malaria and other tropical diseases
(C) A complex mixture of herbicides and weedicides used to increase agricultural output in the South Vietnam under the US aid programme
(D) DDT used as insecticide
Question 7. What is agent orange?
(A) A special chemical used in making alloy steel
(B) A technique used in the advanced railways safety procedure
(C) A weed-killing chemical used by the US military in the Vietnam War
(D) An ace spying group trained by the police in London
Question 8. Which scientist has modified the ‘erosional cycle’?
(A) Dutton
(B) Hutton
(C) Davis
(D) Penck
Question 9. In fruits and vegetables, was emulsion is used for _______.
(A) Creating shine on fruits and vegetables
(B) Enhancing the ripening process
(C) Extension of storage life
(D) None of the above
Question 10. Physico-chemical characteristics of water shows in water sources this changes is due to _________.
(A) Evapotranspiration
(B) Effluents
(C) Aquatic fungi
(D) Aquatic macrophytes
Question 11. Eutrophication of water body results from ___________.
(A) High amounts of nitrogenous nutrients and orthophosphates
(B) Enhanced growth of algae or algal blooms
(C) Depletion of oxygen
(D) Submersing idols in the water body
Question 12. Auxanometer is used _________.
(A) To measure the loss of energy
(B) To measure rate of osomosis
(C) To measure the rate of growth
(D) To measure the rate of photosynthesis
Question 13. A person of mixed European and Indian blood in Latin American is called ___________.
(A) Maumau
(B) Meiji
(C) Mestizo
(D) Mulatto
Question 14. The age of most ancient mountain group is assessed by ___________.
(A) Uranium-Lead process
(B) Ra-Siprocess
(C) C14 process
(D) Potassium organ process
Question 15. Carbon dating is used to determine the age of __________.
(A) Fossils
(B) Rocks
(C) Plants
(D) None of the above
Question 16. The age of the tree, in years, can be ascertained by __________.
(A) Length of its root
(B) The number of its annular rings
(C) Its height
(D) Its weight
Question 17. Water is conducted in vascular plants by _________.
(A) Xylem tissue
(B) Meristems
(C) Parenchyma tissue
(D) Phloem tissue
Question 18. The ‘xylem’ in plants is responsible mainly for ________.
(A) Transportation of oxygen
(B) Transportation of water
(C) Transportation of amino acid
(D) Transportation of food
Question 19. Which of the following matter is most abundantly found in nature?
(A) Sucrose
(B) Fructose
(C) Cellulose
(D) Glucose
Question 20. The most abundantly found organic compound in nature is __________.
(A) Cellulose
(B) Sucrose
(C) Fructose
(D) Glucose
Question 21. Liver fluke in bile duct remains in _________.
(A) Sheep
(B) Man
(C) Cow
(D) Horse
Question 22. Which one of the following is responsible for differentiation between Gram-positive and Gramnegative bacteria?
(A) Cell membrane
(B) Ribosome
(C) Cell wall
(D) None of the above
Question 23. Estuaries possess distinct blooms of excessive growth of a pigmented dinoflagellates. These blooms are _________.
(A) Sea flowers
(B) Black tides
(C) Sea tides
(D) Red tides
Question 24. Is Phytotron a technique?
(A) To induce mutation
(B) To grow the plant at the time it stops growing
(C) To save the endangered species of plant
(D) To grow the plant in the condition when it is disease free
Question 25. Which one of the following is a secretion from the body of an insect?
(A) Gum
(B) Lac
(C) Coral
(D) Pearl