Daily UPSC Prelims Current Affairs – April 28-29, 2022 [Test]
April 29, 2022 April 29, 2022
1. With respect to the layers of the sun, which of the following layers get hotter if you go further away from the Sun?
[A] Photosphere
[B] Chromosphere
[C] Transition region
[D] Corona
Show Answer
Correct Answer: B [Chromosphere]
Notes:- The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.
- The photosphere is the deepest layer of the Sun that we can observe directly. Most of the photosphere is covered by granulation.
- The chromosphere is a layer in the Sun above the solar surface (the photosphere). In this layer (and higher layers) it actually gets hotter if you go further away from the Sun, unlike in the lower layers, where it gets hotter if you go closer to the center of the Sun.
- The transition region is a very narrow (60 miles / 100 km) layer between the chromosphere and the corona where the temperature rises abruptly.
- The corona is the outermost layer of the Sun. The corona cannot be seen with the naked eye except during a total solar eclipse, or with the use of a coronagraph. The corona does not have an upper limit.
2. Trellis system that was in news recently, is an effective tool for which of the following?
- Sustainable and climate-resilient agriculture.
- Higher yield for the farmer.
- Longer post-harvest life for the produce.
Select the correct answer using the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:- A trellis structure is prepared using four pillars, bamboo poles and ropes. The plants climb vertically with the support of bamboo and ropes. Creepers like bitter gourd, pointed gourd, tomato, cowpea, beans and cucumber are cultivated in this system.
- The trellis model is an effective tool for sustainable and climate-resilient agriculture.
- The survival rate of creepers grown in the trellis system is higher than those grown in a flat-bed system.
- As plants grew vertically in a trellis system, there was little chance of rotting of stems, flowers and fruits due to water logging.
- “Proper spacing in the system enhances the utilisation of nutrients, water, sunlight, carbon dioxide and oxygen. Proper ventilation helps in control of pests and diseases as well. Besides, with proper spacing, higher plant population can be taken up. All these result in higher yield for the farmer.
- Apart from a good yield, a trellis system reduces the cost of cultivation by way of ease of weeding, hoeing, staking / propping, spraying and harvesting.
- “The produce that is harvested is of better quality in terms of shape and size and is free of soil contamination. The trellis system ensures a longer post-harvest life for the produce.
3. Which of the following health insurance covers is initiated for migrant workers?
[A] Awaz Health Insurance Scheme
[B] Swasthya Sathi Scheme
[C] YSR Aarogyashri Scheme
[D] None of the above
Show Answer
Correct Answer: A [Awaz Health Insurance Scheme]
Notes:- Awaz Health Insurance Scheme is a health insurance cover for migrant workers and is initiated by the Government of Kerala. It also offers insurance for death by accident for labourers. The scheme was launched in the year 2017.
- Swasthya Sathi scheme was launched in West Bengal in 2016. Entire population of the state irrespective of the age group is included in this scheme. The scheme is completely funded by the state government.
- YSR Aarogyashri is a flagship programme of Andhra Pradesh government. The scheme has been expanded to bring the treatment of 2,000 types of diseases and procedures within the ambit of its flagship program. It was initially launched in 2007.
