cExams.net
Test # 21


1.
Microbial fuel cells are considered a source of sustainable energy. Why ?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in waste water treatment plants to cleanse water and produce electricity.
Which of the following statements given above is/ are correct ?

Login/Register to access massive collection of FREE questions and answers.
Login/Register

gk11
Quiz Index
1100 questions in 110 tests. Each test contains 10 questions.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110

Paper money is not made from wood pulp but from cotton. This means that it will not disintegrate as fast if it is put in the laundry.      .. More >>

stimulus generalisation:
n.
1.(psychology) transfer of a response learned to one stimulus to a similar stimulus      .. More >>
  • Spookiest Abandoned Places
  • Valentines Day
  • Rules to play Hang Gliding
  • Natural Healthy Summer Foods
  • 101 Ideas to Boost Business
  • Most Extensive Metro Systems In The World

  • Biggest things in the World

    A Tank

    An unemployed plumber made news headlines when he stole an M60 tank on May 17,1995. The man in question stole the tank from the California Army National Guard Armory and went on a rampage, destroying everything in his path. The 23 minute chase by San Diego police (which wasn t exactly the next installment ofSpeedsince the tank could only go 30 mph at top speed) ended tragically, as the thief, who had been suffering several setbacks in his life, was shot and killed by police.


    Chourishi Systems