Which of the following contains maximum carbon dioxide ?

• Grasslands
• Forests
• Oceans
• Agroecosystems
Correct Option: C  [ Oceans ]

Remark:

Electric appliances have star rating ( upto 5 stars) on them. More the number of stars :

1. longer is the life span of the appliance
2. more stringent is the quality checks
3. Higher is the energy efficiency of the appliance

Which of the above is / are correct ?

• 1 only
• 3 only
• 1 and 2 only
• 1, 2 and 3
Correct Option: B  [ 3 only ]

Remark:

Which instrument is used for measuring humidity of atmosphere?

• Barometer
• Anemometer
• Thermometer
• Hygrometer
Correct Option: D  [ Hygrometer ]

Remark:

What is the meaning of the word 'Tsunami' in Japanese?

• High waves
• Destructive waves
• Harbour waves
• none of these
Correct Option: C  [ Harbour wave ]

Remark: Indian Ocean Tsunami occurred on 26 December, 2004 with an epicentre off the west coast of Sumatra, Indonesia.

Who invented vaccination for 'small pox'?

• Sir Fredrick Grant Banting
• Sir Alexander Fleming
• Edward Jenner
• Louis Pasteur
Correct Option: C  [ Edward Jenner ]

Remark:

Which of the following colours is not a primary colour ?

• Red
• Yellow
• Green
• Blue
Correct Option: B  [ Yellow ]

Remark:

Bronchitis is a disease of :

• Blood
• Liver
• Intenstine
• Respiratory track
Correct Option: D  [ Respiratory track ]

Remark:

The phenomenon of radioactivity was discovered by:

• Marie Curie
• Pierre Curie
• Henri Becquerel
• J J Thomson
Correct Option: C  [ Henri Becquerel ]

Remark:

What is deposited on iron in the process of galvanisation?

• Copper
• Zinc
• Tin
• Aluminium
Correct Option: B  [ Zinc ]

Remark:

Which among the following is present in refrigerator?

• Carbon dioxide
• Methane
• Helium
• Chlorotluorocarbon
Correct Option: D  [ Chlorotluorocarbon ]

Remark: Chlorotluorocarbons (CFCs) have recently been phased out and newer refrigerators will not contain CFCs. The use of CFCs was phased out by 2000 under the Montreal Protocol.