UPSC CSE General Studies Practice Questions - Set 3

21. With reference to 'Biodiversity', which of the following is/are the 'Ex-situ' conservation method(s)?
1. National Parks
2. Botanical Gardens
3. Wildlife Sanctuaries
4. Seed Banks
Select the correct answer using the code given below:

A. 1 and 3 only B. 2 and 4 only C. 2, 3 and 4 only D. 1, 2, 3 and 4

22. With reference to 'Web 3.0', consider the following statements:
1. Web 3.0 technology enables people to control their own data.
2. In Web 3.0 world, there can be blockchain based social networks.
3. Web 3.0 is operated by users collectively rather than a corporation.
Which of the statements given above are correct?

A. 1 and 2 only B. 2 and 3 only C. 1 and 3 only D. 1, 2 and 3

23. Which of the following is/are the application(s) of 'CRISPR-Cas9' technology?
1. Correcting genetic defects
2. Treating and preventing the spread of diseases
3. Improving crops
Select the correct answer using the code given below:

A. 1 only B. 2 and 3 only C. 1 and 3 only D. 1, 2 and 3

24. In the context of the 'Paris Agreement' on climate change, what is the significance of 'Nationally Determined Contributions' (NDCs)?

A. They are the mandatory carbon tax rates for each country. B. They are the climate action plans of each country to reduce emissions and adapt to climate change. C. They are the financial contributions by developed nations to the Green Climate Fund. D. They are the targets for 100% renewable energy by 2030 for all member states.

25. With reference to 'OLEDs' (Organic Light Emitting Diodes), consider the following statements:
1. OLED displays can be fabricated on flexible plastic substrates.
2. Roll-up displays embedded in clothing can be made using OLEDs.
3. Transparent displays are possible using OLEDs.
Which of the statements given above are correct?

A. 1 and 3 only B. 2 and 3 only C. 1, 2 and 3 D. 1 and 2 only

26. Which of the following are the sources of 'Methane' emission into the atmosphere?
1. Rice Fields
2. Coal Mining
3. Livestock (Enteric Fermentation)
4. Wetlands
Select the correct answer using the code given below:

A. 1, 2 and 3 only B. 2 and 4 only C. 1 and 4 only D. 1, 2, 3 and 4

27. The term 'Dead Zones' in oceans refers to:

A. Areas with very high salinity where no life exists. B. Areas with low-oxygen (hypoxic) levels that can kill fish and other marine life. C. Areas where coral bleaching has occurred. D. Deepest parts of the ocean where light doesn't reach.

28. With reference to 'Near Field Communication' (NFC) Technology, which of the following statements is/are correct?
1. It is a contactless communication technology that uses electromagnetic radio fields.
2. NFC is designed for use by devices within a distance of about a few centimeters.
3. NFC can use encryption when sending sensitive information.
Select the correct answer using the code given below:

A. 1 and 2 only B. 3 only C. 1 and 3 only D. 1, 2 and 3

29. 'Lichen', which is capable of initiating ecological succession even on a bare rock, is actually a symbiotic association of:

A. Algae and Bacteria B. Algae and Fungi C. Bacteria and Fungi D. Fungi and Mosses

30. The term 'Virtual Private Network' (VPN) is best described as:

A. A private network of an organization where employees can access only certain websites. B. A computer network that uses a public telecommunication infrastructure to provide remote users with secure access to their organization's network. C. A network that is physically disconnected from the internet for security reasons. D. A social media platform specifically for professional networking.

UPSC CSE General Studies Practice Questions (21-30)