66: Lichens is an association of two types of organisms. They are:
(a) Algae and fungi
(b) Algae and virus
(c) Fungi and virus
(d) Virus and bacteria
67: With reference to Need tree, consider the following statements :
1. Neem oil can be used as a pesticide to control the proliferation of some species of insects and mites.
2. Neem seeds are used in the manufacture of biofuels and hospital detergents.
3. Neem oil has applications in pharmaceutical industry.
Which of the statements given above is / are correct ?
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
68: Match List I (Industrial processes) with List II (Industry with which associated) and select the correct answer using the codes given below the Lists :
List I------------------ List II
I. Cracking-------------(A) Rubber
II. Smelting-------------(B) Petroleum
III. Hydrogenation-------(C) Copper
IV. Vulcanization---------(D) Edible fats
Codes:
(a) I-C, II-B, III-A, IV-D
(b) I-B, II-C, III-D, IV-A
(c) I-B, II-C, III-A, IV-D
(d) I-C, II-B, III-D, IV-A
69: Haemophilia is a hereditary disease carried by
(a) females and expressed by females
(b) females and expressed by males
(c) males and expressed by females
(d) males and expressed by males
70: Which one of the following is the process involved in photosynthesis ?
(a) Potential energy is released to form free energy
(b) Free energy is converted into potential energy and stored
(c) Food is oxidized to release carbon dioxide and water
(d) Oxygen is taken, and carbon dioxide and water vapour are given out