Wednesday, February 23, 2011

GK Questions|Trees or Plants

1.  Why is it dangerous to sleep under trees at night?
A.  Plants respire at night and give out carbon dioxide which reduces the oxygen content of air required for breathing.
 
2.  What P is the word used for the grassy plains of Argentina?
A.  Pampas
 
3.  'Shirley', 'Harbinger' and 'Moneymaker' are all varieties of what plant?
A.  Tomato
 
4.  From which plant do we obtain Linseed Oil?
A.  Flax
 
5.  Which of the following is not one of the important steps in processing tea leaves? a. Rolling b. Drying c. Fermenting d. Withering
A.  Fermenting
 
6.  Pitcher plant is what kind of a plant?
A.  Insectivorous
 
7.  What are pneumatophores?
A.  The breathing roots of mangroves.
 
8.  From which part of the plant Opium is derived?
A.  Dried Latex
 
9.  The movement of a plant part toward or away from a source of heat is called
A.  Thermotropism
 
10.  Plant that will only grow in water or in a very moist environment
A.  Hydrophytes
 
11.  Plant that needs moderate amounts of moisture for growth is known as
A.  Mesophytes
12.  Plant that can survive and grow in direct sunlight or that grows best in direct sunlight is called
A.  Heliophytes
 
13.  Plant that is adapted to living through seasonal changes in heat, cold, dryness, or moisture, for example, by shedding leaves during a dry season is called
A.  Tropophyte
 
14.  Green plant pigment used in photosynthesis is called
A.  Chlorophyll
 
15.  What is responsible for yellow, orange, or red color in flowers and fruits
A.  Chromoplasts
 
16.  The pigment found in plants that gives them their green color
A.  Chlorophyll
 
17.  Which element helps in the flowering of plants
A.  Phosphorous
 
18.  What type of trees yield the resin used to produce turpentine?
A.  Pine trees.
 
19.  What elemental event rejuvenates a prairie by causing more plants to grow taller, flower and produce seed?
A.  Fire.
 
20.  Which flowerless plants found mostly in water and having chlorophyll?
A.  Algae
 
21.  The drug which reduces blood pressure is obtained from the root of the plant?
A.  Rauwolfia serpentine
 
22.  Rows of trees grown along the coastal areas to reduce the impact of Cyclones are called as
A.  Mangroves
 

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