MEDIUM
RRB Group D CBT
IMPORTANT
Earn 100

For the measurement/estimation of which of the following are satellite images/remote sensing data used? 

1. Chlorophyll content in the vegetation of a specific location.

2. Greenhouse gas emissions from rice paddies of a specific location.

3. Land surface temperatures of a specific location.

Select the correct answer by using the codes given below

50% studentsanswered this correctly

Important Questions on Previous Year's Questions

MEDIUM
RRB Group D CBT
IMPORTANT
In the context of which one of the following are the terms pyrolysis and plasma gasification’ mentioned?
HARD
RRB Group D CBT
IMPORTANT

In the context of digital technologies for entertainment, consider the following statements:
1. In Augmented Reality (AR), a simulated environment is created, and the physical world is completely shut out.
2. In Virtual Reality (VR), images generated from a computer are projected onto real-life objects or surroundings.
3. AR allows individuals to be present in the world and improves the experience using the camera of a smartphone or PC.
4. VR closes the world and transposes an individual, providing a complete immersion experience.
Which of the statements given above is/are correct?

HARD
RRB Group D CBT
IMPORTANT
The word ‘Denisovan’ is sometimes mentioned in media about_____.
MEDIUM
RRB Group D CBT
IMPORTANT
With reference to the recent developments in Science, which one of the following statements is not correct?
MEDIUM
RRB Group D CBT
IMPORTANT

Consider the following statements:

A digital signature is:

1. An electronic record that identifies the certifying authority issuing it.

2. Used to serve as a proof of identity of an individual to access information or server on the Internet.

3. An electronic method of signing an electronic document and ensuring that the original content is unchanged.

Which of the statements given above is/are correct?

MEDIUM
RRB Group D CBT
IMPORTANT

In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices?

1. Location/identification of a person.

2. Sleep monitoring of a person.

3. Assisting the hearing impaired person.

Select the correct answer by using the codes given below.

HARD
RRB Group D CBT
IMPORTANT

‘RNA interference (RNA)’ technology has gained popularity in the last few years. Why?

1. It is used in developing gene-silencing therapies.

2. It can be used in developing therapies for the treatment of cancer.

3. It can be used to develop hormone replacement therapies.

4. It can be used to produce crop plants that are resistant to viral pathogens.

MEDIUM
RRB Group D CBT
IMPORTANT
Recently, scientists observed the merger of giant 'Black holes' billions of light-years away from the earth. What is the significance of observation?