The study of bones is done under the branch of science called -

1) geology

2) serology

3) orology

4) osteology

 A new frog species named Polypedates Bengalensis has been found in residential areas of -

1) Badu, North 24 Pargana district

2) Khordana-hala, South 24 Pargana district

3) Malda Town

4) Both (A) and (B)

A new species of signal fish named Pteropsaron indicum has been discovered in -

1) The Ganges near Sahibganj

2) Deep waters of the Laksha-dweep Sea off Kerala Coast

3) Andaman Island coast

4) Kochchi harbour

Which satellite is dedicated as India's first multi wavelength space observatory?

1) Astrosat

2) SARAL

3) SRMSAT

4) Jugnu

Which of the following is a commonly used chemical method for purifying water?

1) Hibernation

2) Excavation

3) Chlorination

4) Denitrification

Which of the following is a part of the process involved in water cycle?

1) Evaporation

2) Sublimation

3) Freezing

4) Melting

Name the nuclear-capable surface-to-surface intercontinental ballistic missile developed by the Defence Research and Development Organisation (DRDO)?

1) Prithvi III

2) Trishul

3) Agni 5

4) Barak-8

Name the nuclear-capable surface-to-surface intercontinental ballistic missile developed by the Defence Research and Development Organisation (DRDO)?

1) Prithvi III

2) Trishul

3) Agni 5

4) Barak-8

What is the application of the GSAT-31 satellite launched by India on 6 February, 2019?

1) Earth observation

2) Navigation

3) Climate and Environment

4) Communication

With which foreign country India has collaborated to develop the supersonic cruise missile called BrahMos?

1) France

2) China

3) Japan

4) Russia

Which space agency has created history in October 2019 by sending 'all women' astronauts into the space walk?

1) Roscosmos (Russia)

2) NASA (USA)

3) ISRO (India)

4) CNSA (China)