The only snake that builds its nest is:

• Krait
• King cobra
• Chain viper
• Saw scaled viper
Correct Option: B  [ King cobra ]

Remark:

Which of the following is a source of non-conventional energy?

• Firewood
• Diesel
• Petrol
• Biogas
Correct Option: D  [ Biogas ]

Remark:

Which of the following is a vector?

• Mass
• Volume
• Speed
• Velocity
Correct Option: D  [ Velocity ]

Remark:

Cause of global warming is:

• Excessive use of organic manure
• Increase in the amount of CO₂ in the atmosphere
• Increase in the amount of atmospheric nitrogen
• Excessive use of fertilizer.
Correct Option: B  [ Increase in the amount of CO₂ in the atmosphere ]

Remark:

Nitrogen is an essential constituent of all:

• Carbohydrates
• Fats
• Proteins
• Vitamins
Correct Option: C  [ Proteins ]

Remark:

India's first atomic power station was set up at:

• Surat (Gujarat)
• Tarapur (Maharashtra)
• Trombay (Maharashtra)
• Trombay (Maharashtra)
Correct Option: B  [ Tarapur (Maharashtra) ]

Remark:

Which of the following is an Inert Gas?

• Hydrogen
• Nitrogen
• Oxygen
• Argon
Correct Option: D  [ Argon ]

Remark:

The brain of any computer system is:

• ALU
• Memory
• Memory
• CPU
Correct Option: D  [ CPU ]

Remark:

Opium is derived from which part of poppy plant ?

• Seeds
• Leaves
• Bark
• Capsule
Correct Option: D  [ Capsule ]

Remark:

In plants, extra-chromosomal DNA is found in

• Nucleus
• Chloroplast
• Ribosome
• Golgi bodies
Correct Option: B  [ Chloroplast ]

Remark: In many cases, extrachromosomal DNA is contained in cytoplasmic organelles, such as mitochondria (animals), and in chloroplasts and plastids (plants).