#1 The pyramid that cannot take the ‘inverted’ shape is
#2 In terms of percentage of total forest cover, the most abundant type of forest in India, is
#3 Which of the following does not describe commensalism?
#4 Which of the following is least likely to be true of an ecological succession?
#5 Assertion: Biodiversity is worth preserving for ethical reasons rather than economic reasons. Reason: Only 2% of angiosperms are useful to man, in one way or another. In fact, not more than 20 have any value as major food plants.
#6 An excess supply of which of the following nutrients is the most common cause of eutrophication in freshwater lakes?
#7 In the stable ecosystem, which of the following limits the number of trophic levels?
#8 Carbon dioxide is called a green-house gas because it is
#9 The pollutants which are already present in nature, but are released in substantial amounts by man, are known as
#10 A swamp that has many aquatic plants growing in it is suddenly polluted. As a result of the pollution, all of the plants die. Shortly after the pollution, which of the following would decrease in concentration in the water of the pond?
Also read: Ecology Mnemonic