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August 23, 2020 - Daily Quiz

1. Which of the following statements best describes "carbon fertilization"? (a) Increased plant growth due to increased concentration of carbon dioxide in the atmosphere (b) Increased temperature of Earth due to increased concentration of carbon dioxide in the atmosphere (c) Increased acidity of oceans as a result of increased concentration of carbon dioxide in the atmosphere (d) Adaptation of all living beings on Earth to the climate change brought about hr the increased concentration of carbon dioxide in the atmosphere
2. The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?
  1. There are no clouds or water vapour in the lower stratosphere.
  1. There are no vertical winds in the lower stratosphere.
 Which of the statements given above is/are correct in this context?  (a) 1 only (b) 2 only (c) Both 1 and 2 (d) neither 1 nor 2   3. In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass? (a) Biosphere Reserves (b) National Parks (c) Wetlands declared under Ramsar Convention (d) Wildlife Sanctuaries 4. Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss?  1. Hard and waxy leaves 2. Tiny leaves or no leaves 3. Thorns instead of leaves Select the correct answer using the codes given below. (a) 1 and 2 only (b) 2 only (c) 1 and 3 only (d) 1, 2 and 3   5. Find the least number by which 72 must be multiplied in order to produce a multiple of 112?  (a) 21 only (b) 12 only (c) 14 (d) 24   ANSWERS 1. (a) The larger amount of carbon dioxide in the atmosphere that has resulted from rising anthropogenic emissions should help the growth of plants, which use carbon dioxide during photosynthesis. The effect ought to increase crop yields. 2. (b) In this Stratosphere the airflow is less turbulent as there will be no up/down movement of air, so there will be no interruption for Jet planes 3. (b) In national parks local people not allowed to collect and use the biomass 4. (d) 5. (c)  






POSTED ON 23-08-2020 BY ADMIN
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