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Environment & Ecology Quiz

Environment and Ecology MCQs for Competitive Exams

26) It refers to meeting the needs of the present without compromising the ability of future generations to meet their own needs
A. Biodiversity
B. Ecological Footprint
C. Conservation
D. Sustainable Development (Correct Answer)
27) It occurs within a trophic level and is the increase in the concentration of a substance in certain tissues of organisms' bodies due to absorption from food and the environment.
A. Bioremediation
B. Bioconcentration
C. Bioindicator
D. Bioaccumulation (Correct Answer)
28) It refers to an organism or biological response that reveals the presence of the pollutants by the occurrence of typical symptoms or measurable responses and is, therefore, more qualitative.
A. Bioremediation
B. Bioconcentration
C. Bioindicator (Correct Answer)
D. Bioaccumulation
29) They are unable to produce food, are constantly looking for a source of organic nutrients from elsewhere.
A. Autotrophs
B. Detritivores
C. Decomposers
D. Heterotrophs (Correct Answer)
30) They are animals that graze directly on plants or algae.
A. Herbivores (Correct Answer)
B. Omnivores
C. Detritivores
D. Carnivores
31) All ecological space that shares the same species, climate, animals, and plants is called
A. Environment
B. Biome (Correct Answer)
C. Habitat
D. Niche
32) It is defined as occurring when uptake from the water is greater than excretion
A. Bioremediation
B. Bioconcentration (Correct Answer)
C. Bioindicator
D. Bioaccumulation
33) These are selected single-lane food relationships in a series among organisms
A. Food chains (Correct Answer)
B. Food webs
C. Trophic level
D. Niche
34) Fter the 1992 Rio Summit, it became a buzzword for measuring the health of the planet. Andfor referring to number of species found there
A. Biodiversity (Correct Answer)
B. Ecological Footprint
C. Conservation
D. Sustainable Development
35) These are organisms that rely on detritus, the decomposing particles of organic matter, for food.
A. Autotrophs
B. Detritivores (Correct Answer)
C. Decomposers
D. Heterotrophs
36) The country where industrial district at Kalundborg, often labelled as an "industrial ecosystem" or "industrial symbiosis" is situated
A. US
B. Denmark (Correct Answer)
C. Germany
D. Philippines
37) It is defined as the total amount of energy fixed per unit of time minus the amount of energy expended by the metabolic activities of the photosynthetic organisms in the community.
A. Biomass
B. Net primary productivity (Correct Answer)
C. Gross primary productivity (Your Answer)
D. Primary productivity
38) It occurs when substances are released into the environment in harmful amounts as a direct result of human activity.
A. Eutrophication
B. Biomagnification
C. Bioaccumulation
D. Pollution (Correct Answer)
39) These are substances that increase in concentration in living organisms as they take in contaminated air, water, or food because the substances are very slowly metabolised or excreted
A. Bioaccumulants (Correct Answer)
B. Pollutants
C. Poison
D. Nutrients
40) Earthworms and some beetles, termites, and maggots are all terrestrial.
A. Herbivores
B. Omnivores
C. Detritivores (Correct Answer)
D. Carnivores
41) They rely on producers directly or indirectly for a living.
A. Producers
B. Predators (Correct Answer)
C. Decomposers
D. Consumers
42) It is the study of how organisms live and how they interact with their environment.
A. Biology
B. Botany
C. Zoology
D. Ecology (Correct Answer)
43) It is defined as the rate of biomass accumulation by heterotrophs.
A. Biomass
B. Secondary productivity (Correct Answer)
C. Tertiary productivity
D. Primary productivity
44) The living organisms are the____________components of an ecosystem.
A. Biotic (Correct Answer)
B. Abiotic
C. Chemical
D. Social
45) This area, composed of a community and the physical environment it occupies is called
A. Ecosystem (Correct Answer)
B. Biome
C. Biosphere
D. Town
46) It is a complete description of how organism relates to its physical and biological environment
A. Environment
B. Biome
C. Habitat
D. Niche (Correct Answer)
47) It is the ultimate source of energy for every ecosystem.
A. Coal
B. Wind
C. Water
D. Sun (Correct Answer)
48) They are those able to synthesise food for themselves.
A. Producers (Correct Answer)
B. Predators
C. Decomposers
D. Consumers
49) It refers to the release large amounts of phosphate and nitrate or organic matter into the water resulting in a lowering of oxygen levels and change in the fauna of the water
A. Eutrophication (Correct Answer)
B. Biomagnification
C. Bioaccumulation
D. Pollution
50) Which is not an abiotic component of the environment?
A. Gases
B. Bacteria (Correct Answer)
C. Light
D. Soil 
51) This is composed of different populations living together interacting as competitors, predators and prey, or symbiotically.
A. Community (Correct Answer)
B. Organism
C. Biome
D. Ecosystem
52) It measures how much land and water area a human population requires to produce the resource it consumes and to absorb its wastes, using prevailing technology and also called"appropriated carrying capacity".
A. Biodiversity
B. Ecological Footprint (Correct Answer)
C. Conservation
D. Sustainable Development
53) They produce their own organic nutrients for themselves and other members of the community.
A. Autotrophs (Correct Answer)
B. Detritivores
C. Decomposers
D. Heterotrophs 
54) They feed on other animals.
A. Herbivores
B. Omnivores
C. Omnivores
D. Carnivores (Correct Answer)
55) Primary consumers second belong to
A. Fourth trophic level
B. Third trophic level
C. Second trophic level
D. First trophic level (Correct Answer)
56) These autotrophs are bacteria that obtain energy by oxidising inorganic compounds such as ammonia, nitrites, and sulphites, and they use this energy to synthesise carbohydrates.
A. Enzymes
B. Photoautotrophs
C. Coliform
D. Chemautotrophs (Correct Answer)
57) A consists of all the organisms that feed at a particular level in a food chain.
A. Niche
B. Trophic level (Correct Answer)
C. Food pyramid
D. Habitat
58) In this biome the aggravating factor is the water: the precipitations do not arrive at 15 inches per year, whereas the annual average temperature is 86 F.
A. Desert
B. Savanna
C. Steppe
D. Tropical rainforest (Correct Answer)
59) It is a "process that involves predicting and evaluating the likely impacts of a project on the environment during construction, commissioning, operation and abandonment.
A. ECP
B. ECC
C. EIA (Correct Answer)
D. ECA
60) The Philippine Environmental Impact Statement (EIS) System was formally established in 1978 by virtue of _________
A. PD No. 1586 (Correct Answer)
B. RA No. 1586
C. RA No. 6465
D. PD No. 857
61) It is the total amount of organic matter produced by all autotrophs in an ecosystem, including that used by themselves.
A. Biomass
B. Net primary productivity
C. Gross primary productivity (Correct Answer)
D. Primary productivity
62) Primary producers belong to
A. Fourth trophic level
B. Third trophic level
C. Second trophic level
D. First trophic level (Correct Answer)
63) These are coastlines in the tropical and subtropical regions fringed with a strip of swampland which is inundated every high tide with marine and brackish waters
A. Floodland
B. Bog
C. Marine wetland (Correct Answer)
D. Swamp and marsh
64) Lakes that are nutrient poor are described as
A. Heterotrophic
B. Eutrophic
C. Oligotrophic (Correct Answer)
D. Autotrophic
65) With their multiple varieties of vegetal species and animals, these are the most productive biomes of the Earth and those of greatest biodiversity.
A. Deserts
B. Temperate grasslands
C. Steppes
D. Tropical rainforests (Correct Answer)

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