Prelims Power Play 26 February 2023

1. Consider following statements on Tiger census:

1. In India, tiger census is biennial exercise.
2. India’s 2018 Tiger Census is part of Guinness Book of World Records for being the world’s largest camera trapping wildlife survey
3. M-STrIPES is an app-based monitoring system, launched across Indian tiger reserves by the NTCA in 2010.

Which of the above statements is/are correct?

2. “Keystone species are those that have an extremely high impact on a particular ecosystem relative to its population.” Consider the following keystone species and their role in maintaining ecosystem specific to them

Keystone Species                Ecosystem maintained by them

1. Sea Star                 –          Maintain population of turtles and dugongs in ocean ecosystem
2. Sea Otter               –          Maintain Kelp Forest in ocean ecosystem
3. Hummingbird      –          Trees in Forest ecosystem
4. Jaguar                    –          Balance the mammalian jungle ecosystem

Which of the above mentioned pairs is / are correct?

3. Consider the following statements regarding neutrinos.

1. Neutrino is a tiny elementary particle having nearly no mass.
2. Neutrino interacts very weakly with other matter particles and is a negatively charged particle.
3. Neutrinos are one of the most abundant particles in the universe.

Which of the statements given above is/are correct?  Select the correct answer using the code given below.

4. Consider the following statements about Interior of Earth:

1. The outer core is in the solid state while the inner core is in the liquid state.
2. More than 20% of the Earth’s interior by volume is occupied by the Earth’s Crust.
3. Oceanic crust is denser as compared to the continental crust.

Which of the statements given above is/are correct?  Select the correct answer using the code given below:

5. Consider the following

1. Nearshoring refers to the practice of sourcing from trusted, long-term suppliers regardless of their location
2. Friendshoring refers to the practice of moving production or sourcing closer to the end market.

Which of the above is /are correct?