1. Due to improper / indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?1. Beryllium2. Cadmium3. Chromium4. Heptachlor5. Mercury6. Lead7. PlutoniumSelect the correct answer using the codes given below.(a) 1, 3, 4, 6 and 7 only(b) 1, 2, 3,5 and 6 only(c) 2, 4, 5 and 7 only(d) 1, 3, 5 and 7 only2. With reference to the food chains in ecosystems, which of the following kinds of organism is / are known as decomposer organism/organisms?
1. Virus
2. Fungi
3. Bacteria
Select the correct answer using the codes given below.
(a) 1 only(b) 2 and 3 only(c) 1 and 3 only(d) 1, 2 and 33. Consider the following pairs:Tribe State1. Limboo (Limbu) : Sikkim2. Karbi : Himachal Pradesh3. Dongaria : Odisha4. Bonda : Tamil NaduWhich of the above pairs are correctly matched?(a) 1 and 3 only(b) 2 and 4 only(c) 1, 3 and 4 only(d) 1, 2, 3 and 44. With reference to India's biodiversity, Ceylon frogmouth, Coppersmith Barbet, Gray-chinned minivet and White-throated redstart are
(a) Birds
(b) Primates
(c) Reptiles
(d) Amphibians
5. The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is / are the reason / reasons?1. Thermal difference between land and water2. Variation in altitude between continents and oceans3. Presence of strong winds in the interior4. Heavy rains in the interior as compared to coastsSelect the correct answer using the codes given below.(a) 1 only(b) 1 and 2 only(c) 2 and 3 only(d) 1, 2, 3 and 4Answers1 – (c)2 – (b) 3 – (a)4 – (a) Ceylon Frogmouth is a nocturnal Small Bird from Sri Lanka, Coppersmith Barbet is an Asian barbet, Gray-Chinned Minivet is a bird from the Campephagidae family and White throated redstart belongs to Muscicapidae.5 – (a)
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