01. Programs stored in a ROM are called
(1) Software
(2) Freeware
(3) Firmware
(4) None of these
02. A bug in a programme is a/an
(1) Statement
(2) Error
(3) Syntax
(4) Both (2) and (3)
03. An element that does not occur in nature but can be produced artificially is
(1) thorium
(2) radium
(3) plutonium
(4) uranium
04. Chloroform can be used as
(1) Analgesic
(2) Anaesthetic
(3) Antimalarial
(4) Antibiotic
05. The manufacture of iron from iron ore involves the process of
(1) oxidation
(2) reduction
(3) fractional distillation
(4) electrolysis
06. Which of the following is caused by the higher concentration of Nitrogen and Phosphorous?
(1) Eutrophication
(2) Hardness
(3) Alkalinity
(4) Acidity
07. Earth's atmosphere is an envelope of gases extending to a height of
(1) 100 km
(2) 150 km
(3) 200 km
(4) 300 km
08. Absence of fish along a river indicates
(1) Zone of degradation
(2) Zone of active decomposition
(3) All zones of pollution
(4) Zone of recovery
09. Minamata disease was caused due to
(1) Lead
(2) Cyanide
(3) Mercury
(4) Methyl isocyanate
10. Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as
(1) producers
(2) consumers
(3) decomposers
(4) None of these
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