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)

Which of the following is India's first indigenously developed vaccine?

1) BCG

2) Rotavac

3) DPT

4) Inject able Polio vaccine

A geostationary satellite is positioned at a distance of how many kilometers above mean sea level?

1) 35, 880

2) 37, 800

3) 35, 786

4) 32, 000

Why is radiocarbon dating not good for material more than 30,000 years old?

1) Because all animals emitted radiocarbon before that time

2) Because radiocarbon was not present anywhere before that time

3) Because the amount of C14 becomes almost immeasurably small in 30,000 years

4) Because carbon extraction was not known before 30,000 years

Which of the following company designed the world's first 30-KW class ATHENA drone destroying laser?

1) Boeing

2) Thales

3) Lockheed Martin

4) Raytheon