Tag: issues of the environment
Questions Related to issues of the environment
Which of the following terms defines the prefix 'eco'?
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Ecology
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Environment
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Adaptation
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Exchange
The word ecosystem was coined by Tansley a British botanist in 1935. Tansley defined ecosystem as a system resulting from the interaction between biotic and abiotic components of the environment. Biotic components include all living components and abiotic components include all physical factors such as weather, atmosphere, soil, etc. present in the surrounding. Hence the prefix 'eco' means environment.
The sphere of living matter together with water, air and soil on the surface of earth is called as
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Lithosphere
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Biosphere
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Hydrosphere
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Atmosphere
Biosphere is biologically inhabited part of earth along with its physical environment consisting of lower atmosphere, land and water bodies.
Which of the following is an artificial ecosystem?
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Rice-field
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Forest
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Grassland
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Lake
Rice-field (an agricultural field) is considered to be an artificial ecosystem. It is because of the following: It is man-made ecosystem and has all the components of the ecosystem. Abiotic factors which include air, water, soil etc. Biotic factors which include all the living organisms like plants, animals and microbes. It also comprises phenomena such as the flow of energy, food chains, food webs etc. Hence, option A is correct.
An ecosystem is a complex interacting system of
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Individual
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Population
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Community and their physical environment
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Community and their soil condition
An ecosystem is a segment of biosphere consisting of a community of living beings and the abiotic or physical environment interacting and exchanging materials between them. The interactions ultimately result in trapping of energy and production of biomass in an ecosystem. Therefore, the correct answer is option C.
Ecosystem is
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Open
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Closed
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Both A and B
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Neither open nor closed
As per thermodynamics, a system can be open or closed. An ecosystem is an open system because an open system is a system in which energy and nutrients are exchanged between the physical environment and living organisms. In a closed ecosystem, the waste product of an organism is used by the other organism, like decomposers. Therefore, the correct answer is option C.
Ecosystem is defined as
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Relation between plants and animals
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Relation between biotic and physical components
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Relation between producers and decomposers
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None of the above
An ecosystem is a community of organisms living and interacting with the non-living components of the environment within a system. It is made up of 2 types of components viz., biotic and abiotic. Ecosystem represents the relation between biotic and physical componenets.
Ecosystem may be defined as
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Group of plants which act as the energy suppliers
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Group of organisms which form population
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Functional unit for ecological studies
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None of the above
The ecosystem is a segment of nature or biosphere consisting of a community of living beings and the abiotic or physical environment both interacting and exchanging materials between them.
Which one of the following factors is contributed by biotic elements in the ecosystem
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Photoperiod
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$CO _{2}$
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Texture and porosity of soil
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Rainfall
Study of inter-relationships between a species/individual and its environment in all stages of its life cycle is
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Synecology
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Autecology
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Forest Ecology
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Ecology
Who proposed the term ecosystem?
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Odum
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Gardner
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Warming
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Tansley
Ecosystem is a biological community that lives in conjugation with the nonbiological community. It can also be defined as all plants and animal species along with environment. It includes all living things like plants, animals and non-living things like air, water, land, etc. The term Ecosystem was termed by Arthur Tansley in 1935.