IASbaba’s Daily Prelims Test [Day 60]

 

Note- On an emotional note, we end our Prelims 60 Days plan 🙁

It was a great experience with all of you. The love and support received was truly overwhelming. We will not call it a mix response since it was an amazing one 🙂 Every single day was full of new learning for our Team as well as for you (we hope).  We might have sounded harsh sometimes for which we apologize. We also apologize for few unattended queries. Our special apology for Hindi medium aspirants since we couldn’t manage timely disposal due to paucity of resources. We tried our best but nothing is perfect so as WE. There is always a scope of improvement in everything. We intend to learn from our mistakes and will try to get over all these in our future initiatives.

Some of you have given us enough emotional attachment and learning experiences that we are forced to mention- Anuj, Sepoy, Nishant, Pushpendra, Akhil, Anshika, Raman, Baba ka Bhakt, krishna koundinya, Anand, Nikhil Joshi, Biman Ghosh, legaleagle, Draconian, Dark Knight, L.I, Nick Will, Ab, Lee Min, Aditi, malli babu, Bilal, pr39048 to name few . Pardon for not mentioning others as they are in our memory because of continuous interactions 🙂

We wish to remember each and everyone of our followers in days to come. Prepare well for the D-Day and also for tomorrow’s Full Mock.

 

 

Today’s Topic- Environment, S&T and Current Affairs

 

1. The Millennium Ecosystem Assessment describes the following major categories of ecosystem services—provisioning, supporting, regulating, and cultural.
Consider the following

  1. Genetic resources, water and minerals are part of supporting ecosystem services
  2. Nutrient recycling, primary production and soil health are part of regulating ecosystem services
  3. Raw materials and Energy are part of provisioning ecosystem services

Select the correct answer using codes

  1. 1 and 2
  2. Only 3
  3. 1, 2 and 3
  4. None

 

2. What would happen if phytoplankton of an ocean is completely destroyed for some reason? 

  1. The ocean as a carbon sink would be adversely affected.
  2. The food chains in the ocean would be adversely affected.
  3. The density of ocean water would drastically decrease.

Select the correct answer using the codes given below

  1. 1, 2 and 3
  2. 2 and 3
  3. 1 and 2
  4. 1 and 3

 

3. Polymetallic nodules are rock concretions on the sea bottom formed by layers of certain minerals. Consider the following

  1. Magnesium
  2. Manganese
  3. Nickel
  4. Oxygen
  5. Sodium
  6. Iron
  7. Potassium

Which of the above are major constituents of polymetallic nodules?

  1. 1, 3 and 4
  2. 1, 2, 3, 4, 5, 6 and 7
  3. 2, 3 and 6
  4. 1, 2, 3, 4, 5 and 6

 

4. Consider the following

  1. International Space Station
  2. Antarctic
  3. Outer Space
  4. Arctic

What constitutes Global Commons?

  1. 1, 2 and 3
  2. 2, and 3
  3. 2 and 4
  4. 3 and 4

 

5. Which is ‘doubly landlocked country’?

  1. Kazakhstan
  2. Uzbekistan
  3. Afghanistan
  4. Tajikistan

 

6. Which one of the following statements is correct?

  1. Tadpoles have gills
  2. Fishes eat only animal matter
  3. Heart is three-chambered in tadpoles
  4. All fishes have swim bladders

 

7. Which one of the following pairs of power projects is not correctly matched?

  1. Ukai- Thermal Power
  2. Papansam- Hydropower
  3. Baira Suil- Wind Power
  4. Kaiga- Nuclear Power

 

8. Consider the following statements

  1. The earth does not move along its orbit at a constant rate.
  2. The earth moves fastest at perihelion and slowest at aphelion.

The above statements are true of which one of the following laws?

  1. Kepler’s 2nd law
  2. Kepler’s 3rd law
  3. Kepler’s 1st law
  4. Newton’s law of gravitation

 

9. When a moving bus suddenly applies brakes, the passengers sitting in it fall in the forward direction. This can be explained by

  1. Newton’s 1st law
  2. Newton’s 3rd law
  3. Law of momentum
  4. The theory of relativity

 

10. Flint glass is obtained from which of the following

  1. Zinc and Barium borosilicate
  2. Sodium aluminium borosilicate
  3. Sand, Lead oxide and potassium carbonate
  4. Pure silica and zinc oxide

 

11. Consider the following

  1. Mining
  2. Gravitational Energy
  3. Volcanic eruption
  4. Earthquake waves

Which of the above gives direct source of information about interior of Earth?

  1. 1, 2, 3 and 4
  2. 2 and 4
  3. 1 and 3
  4. 2, 3 and 4

 

12. A magnetic substance can be demagnetized by

  1. Heating till a temperature known as Curie temperature is reached
  2. Placing the substance in a direction opposite to that of the Earth’s horizontal intensity
  3. Heating or hammering

Select the correct answer using codes

  1. 1 and 2
  2. 2 and 3
  3. 1, 2 and 3
  4. 1 and 3

 

13. Gout, a metabolic disease occurs due to high level of

  1. Sugar in the blood
  2. Urea in the blood
  3. Uric acid in the blood
  4. Cholesterol in the blood

 

14. The term ‘Evolutionary Significant Unit’ can be applied to

  1. Population
  2. Geographical Race
  3. Species
  4. Subspecies

Select the correct codes

  1. 1 and 3
  2. 2, 3 and 4
  3. 1, 2, 3 and 4
  4. 1, 2 and 3

 

15. Consider the following statements

  1. Edge effects refer to the changes in population or community structure that occur at the boundary of two habitats.
  2. As the edge effects increases, the boundary habitat allows for lower biodiversity
  3. The edge effects can result into abiotic and biotic conditions which diminish natural variation and threaten the original ecosystem

Select the correct answer using codes

  1. 1 and 2
  2. 2 and 3
  3. 1 and 3
  4. 1, 2 and 3

 

16. Cloudy nights are warmer than clear nights because of

  1. Green house effect
  2. Terrestrial Radiation
  3. Insolation
  4. Depletion of ozone layer

 

17. Which of the following statements is/are correct regarding fat?

  1. Fats are required for repair of damaged tissue
  2. They help in absorbing calcium from food
  3. They are needed for the formation of cell membrane
  4. Body cannot release energy in the form of fats as easily as in the form of carbohydrates

Select the correct codes

  1. 1, 2 and 3
  2. 1 and 4
  3. 2 and 3
  4. 3 and 4

 

18. Which of the following methods are suitable for soil conservation in hilly areas?

  1. Terrace farming
  2. Strip cropping
  3. Contour ploughing
  4. Contour Bunding

Select the correct code

  1. 1, 2, 3 and 4
  2. 1, 3 and 4
  3. 2, 3 and 4
  4. 1 and 3

 

19. Which of the following are chief characteristics of commercial grain farming of middle latitude grassland?

  1. Large farmlands
  2. Subsistence farming
  3. Low mechanized

Select the correct code

  1. Only 1
  2. 2 and 3
  3. 1 and 2
  4. Only 3

 

20. Consider the following

  1. Wood
  2. Silk
  3. Limestone
  4. Coal
  5. Oil
  6. Grass

Which of the above are examples of Biogenic Substance?

  1. 3, 4 and 5
  2. 1, 2, 4 and 6
  3. 1, 2, 3, 4, 5 and 6
  4. 4 and 5

 

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