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UPSC PRELIMINARY MOCK TEST 3
Question 81 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
International Union for Conservation of Nature | |
UN Environment | |
World Wide Fund for Nature | |
Both b and c |
World Wide Fund for Nature (WWF) has released the first-ever global assessment of forest biodiversity.
Key findings:
- There has been a 53% decline in the number of forest wildlife populations since 1970.
- Of the 455 monitored populations of forest specialists, more than half declined at an annual rate of 1.7 per cent, on average between 1970 and 2014.
- While the decline was consistent in these years among mammals, reptiles and amphibians (particularly from the tropical forests), it was less among birds (especially from temperate forests).
Question 82 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
Persistent Organic Pollutants | |
Sustainable Development | |
Transboundary movement of oil and gas | |
Millennium Development Goals (MDGs) |
Learning: Do not be confused between Stockholm declaration and Stockholm Convention. The latter deals with PoPs.
The Declaration of the United Nations Conference on the Human Environment, or Stockholm Declaration, was adopted June 16, 1972 by the United Nations Conference on the Human Environment at the 21st plenary meeting as the first document in international environmental law to recognize the right to a healthy environment.
Q Source: Major agreements on environment
Question 83 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
- This process makes natural rubber or related polymers more durable materials
- Vulcanised rubber acts a better electrical conductor due to cross linkages created by the process
- Sulfur is used to heat natural rubber in vulcanisation
1 and 2 Only | |
2 and 3 Only | |
1 and 3 Only | |
1.2 and 3 |
Vulcanization or vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur[1] or other equivalent curatives or accelerators. These additives modify the polymer by forming cross-links (bridges) between individual polymer chains.
Advantages of Vulcanized rubber:
- It has good tensile strength and extensibility.
- Excellent resilience i.e.it returns to the original shape, when the deforming load is removed.
- Low water absorption tendency.
- Higher resistance to oxidation, wear and tear abrasion.
- Better electrical insulator .
- It is resistant to organic solvents (petro, benzene), fats and oils.
- It has higher useful temperature range unlike uncured rubber which becomes soft at high temperature(>335K) and brittle at low temperatures (<283K)
Question 84 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
- FRDI Bill, 2017 seeks to protect customers of financial service providers in times of financial distress.
- FRDI Bill, 2017 deals only with the companies that are in the financial sector.
1only | |
2 only | |
Both 1 and 2 | |
Neither 1 nor 2 |
Question 85 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER] |
N. Srikrishna | |
N.K. Singh | |
Bibek Debroy | |
Arbind Modi |
