Environmental Engineering

301. Commonly used radioactive isotopes in scientific research

1. 14 C
2. 125 I
3. 32 P
4. all of these

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302. Conservation within the natural habitat is

1. insitu conservation
2. exsitu conservation
3. invivo conservation
4. exvivo conservation

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303. Definition of ecosystem is

1. The community of organisms together with the environment in which they live
2. The abiotic component of a habitat
3. The part of the earth and its atmosphere which inhibits living organisms
4. A community of organisms interacting with one another

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304. Dodo is

1. endangered
2. critically endangered
3. rare
4. extinct

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305. Drinking of fluoride containing water results:

1. fluorosis
2. chlorosis
3. minemata
4. methaemoglobinema

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306. Earth summit was held in

1. Stockholm in 1972
2. Rio de Jeneiro in 1992
3. Paris in 1992
4. New York in 1972

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307. Ecological niche of an organism represents

1. The resource it utilizes
2. Functional role in the ecological system
3. The range of conditions that it can tolerate
4. all of these

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308. Ecology deals with the study of:

1. Living beings
2. Living and non living components
3. Reciprocal relationship between living and non living components
4. Environment

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309. Ecotype is a type of species in which environmentally induced variations are

1. Temporary
2. Genetically fixed
3. Genetically not related
4. None of the above

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310. Endemic species are

1. rare species
2. species localised in a specific region
3. cosmopolitan in distribution
4. critically endangered species

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