May 18, 2021 - Daily Quiz
1. Consider the following statements:
- Permafrost and wildfires release greenhouse gases.
- Arctic wildfires occur primarily in the boreal forest.
- Taiga biome is the world's largest terrestrial biome.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1, 2 and 3 only
(c) 2 only
(d) 1 and 3 only
2. Consider the following liquid assets:
- Voyager 1 is the least distant human-made object in space.
- Interstellar plasma is extremely diffuse compared to what we're used to on Earth.
- About 15% of the visible matter in our Milky Way galaxy is composed of this interstellar gas, dust and energetic particles like cosmic rays.
Which of the above is/are correct?.
(a) 1 and 2 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
3. CT scan is done using
(a) X - Rays
(b) UV Light
(c) Magnetic Resonance
(d) Positrons
4. "Cytokine Storm" that is frequently in news is related to
(a) Health issues
(b) Typhoons
(c) Tsunamis
(d) Gravitational Waves
5. Consider the following w.r.t. Venus.
1. It spins on its axis almost upright.
2. It is slightly bigger than Earth.
3. Its atmosphere consists primarily of carbon dioxide, with clouds of sulfuric acid droplets.
Which of these is/are true?.
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
Answers
1 – (b)
Taiga is a biome characterized by coniferous forests. Covering most of inland Alaska, Canada, Sweden, Finland, inland Norway, northern Kazakhstan and Russia (especially Siberia), as well as parts of the extreme northern continental United States, the taiga is the world's largest terrestrial biome. In Canada, boreal forest is the term used to refer to the southern part of this biome, while "taiga" is used to describe the more barren northern areas south of the Arctic tree-line. Since North America and Eurasia were recently connected by the Bering land bridge, a number of animal and plant species (more animals than plants) were able to colonise both continents and are distributed throughout the taiga biome. Others differ regionally, typically with each genus having several distinct species, each occupying different regions of the taiga. Taigas also have some small-leaved deciduous trees like birch, alder, willow and aspen; mostly in areas escaping the most extreme winter cold. However, the deciduous Larch is coping with the coldest winters on the northern hemisphere in eastern Siberia. The southernmost part of the taiga also have trees like oak, maple and elm scattered among the conifers.
2 – (c)
https://www.thehindu.com/sci-tech/science/nasas-voyager-1-detects-the-eerie-hum-of-interstellar-space/article34539865.ece
3 – (a)
https://www.thehindu.com/sci-tech/health/explained-why-have-doctors-cautioned-against-misuse-of-ct-scans-and-steroids-to-diagnose-and-treat-covid-19/article34516623.ece
4 – (a)
https://www.thehindu.com/news/national/no-difference-in-mortality-in-covid-19-first-and-second-wave-icmr/article34358148.ece
https://www.thehindu.com/sci-tech/health/the-hindu-explains-what-are-some-of-the-key-terms-being-used-to-describe-the-novel-coronavirus-outbreak/article31768617.ece
5 – (b)
https://www.thehindu.com/sci-tech/science/how-long-is-the-solar-systems-longest-day-venus-has-the-answer/article34478742.ece
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