A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop - Rat -Snake - Hawk. In this food chain, the highest concentration of the pesticide would accumulate in which one of the following?

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Q: 23 (IAS/2010)
A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop - Rat -Snake - Hawk. In this food chain, the highest concentration of the pesticide would accumulate in which one of the following?
Consider the following activities : 1. Spraying pesticides on a crop field. 2. Inspecting the craters of active volcanoes. 3. Collecting breath samples from spouting whales for DNA analysis. Q. At the present level of technology, which of the above activities can be successfully carried out by using drones ? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3
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question_subject: 

Science

question_exam: 

IAS

stats: 

0,153,62,37,16,9,153

keywords: 

{'pesticide': [0, 0, 1, 0], 'hydrocarbon': [1, 0, 2, 1], 'food chain': [4, 0, 1, 4], 'food crop': [2, 0, 0, 1], 'highest concentration': [0, 0, 1, 0], 'rat': [2, 1, 1, 0], 'snake': [0, 0, 0, 1], 'hawk': [1, 0, 2, 1]}