Red data book contains data of which of the following?

• All plant species
• All animal species
• All endangered species
• All extinct species
Correct Option: C  [ All endangered species ]

Remark:

Which metal is responsible for Itai-Itai disease?

• Cadmium
• Nickel
• Chromium
• Mercury
Correct Option: A  [ Cadmium ]

Remark:

The gas used for artificial ripening of green fruit is:

• Ethylene
• Ethane
• Carbon dioxide
• None of these
Correct Option: A  [ Ethylene ]

Remark:

Neutron was discovered by:

• J. Chadwick
• J. J. Thomson
• Rutherford
• Neil Bohr
Correct Option: A  [ J. Chadwick ]

Remark:

Purity of milk is tested by:

• Electrometer
• Lactometer
• Radiometer
• Refractometer
Correct Option: B  [ Lactometer ]

Remark:

Which among the following helps in circulation of blood ?

• Arithrocytes
• Blood platelets
• Monocytes
• Lymphocytes
Correct Option: D  [ Lymphocytes ]

Remark:

The bats can fly in the dark because:

• they can see the objects in darkness
• they have weak legs and are likely to be attacked by predators
• they generate flashes of light
• they generate ultrasonic sound waves
Correct Option: D  [ they generate ultrasonic sound waves ]

Remark:

The art and science of map making is called:

• remote sensing
• cartography
• photogrammetry
• mapping
Correct Option: B  [ cartography ]

Remark:

Junk e-mail is also called:

• spam
• spoof
• sniffer script
• spool
Correct Option: A  [ spam ]

Remark:

An Obstetrician deals with:

• Child disease
• Liver disease
• Pregnancy & child birth
• Nerve disease
Correct Option: C  [ Pregnancy & child birth ]

Remark: Obstetricians specialize in obstetrics, which deals with all aspects of pregnancy and childbirth, from prenatal care to postnatal care.