1. "Carbon dioxide"
2. "Hydrogen"
3. "Nitrogen"
4. "oxygen"
Nitrogen
"1. "2.5 litres"
2. "3.5 litres"
3. "4.5 litres"
4. "5.5 litres"
2.5 litres
"1. "Leukemia"
2. "Meningitis"
3. "polio"
4. "small pox"
Leukemia
"1. "electric current"
2. "three-horses"
3. "electric current"
4. "Power"
Power
"1. "zinc"
2. "aluminium"
3. "iron"
4. "manganese"
aluminium
"1. "rearing of silk worms"
2. "textile technology"
3. "growth of plants"
4. "None of these"
rearing of silk worms
"1. "teeth"
2. "skull"
3. "facial sinuses"
4. "None of these"
teeth
"1. "It is a programme which changes a programming language into a machine code."
2. "It helps in deciding the colour combination of printed matter in colour monitors"
3. "It is the device which helps in storage of data in a particular area."
4. "The compiler is used to link various computers in a local network."
It is a programme which changes a programming language into a machine code.
"1. "IBM"
2. "PASCAL"
3. "Fortran"
4. "Cobol"
IBM
"1. "reflection"
2. "parallax view"
3. "refraction"
4. "None of these"
refraction
"