An ecological system is a – (1) Biological system (2) Biogeochemical system (3) Physicochemical system (4) Bioecological system

An ecological system is a – (1) Biological system (2) Biogeochemical system (3) Physicochemical system (4) Bioecological system
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(1) Biological system Explanation: An ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These components are regarded as linked together through nutrient cycles and energy flows. They are biological system in the sense that they represent recurring groups of biological communities that are found in similar physical environments and are influenced by similar dynamic ecological processes, such as fire or flooding.
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An ecological system is a (1) Biological system (2) Biogeochemical system (3) Physicochemical system (4) Bioecological system

Description : An ecological system is a (1) Biological system (2) Biogeochemical system (3) Physicochemical system (4) Bioecological system

Last Answer :  Biological system

Which one of the following regions of India is now regarded as an 'ecological hot spot'? (a) Western Himalayas (b) Eastern Himalayas (c) Western Ghats (d) Eastern Ghats

Description : Which one of the following regions of India is now regarded as an 'ecological hot spot'? (a) Western Himalayas (b) Eastern Himalayas (c) Western Ghats (d) Eastern Ghats

Last Answer : Ans: (c)

The minimum fore at cover necessary to maintain ecological balance is (a) 50% of the total land area (b) 40% of the total land area (c) 33% of the total land area (d) 25% of the total land area

Description : The minimum fore at cover necessary to maintain ecological balance is (a) 50% of the total land area (b) 40% of the total land area (c) 33% of the total land area (d) 25% of the total land area

Last Answer : Ans: (c)

Which one of the following statements on biosphere reserves is not correct? [CDS 2010] (a) In 1973, UNESCO launched a worldwide programme on man and biosphere (b) Biosphere reserves promote research on ecological conservation (c) Nanda Devi Biosphere Reserve is located in Madhya Pradesh (d) Biosphere reserves are multipurpose protected areas to preserve the genetic diversity in ecosystems

Description : Which one of the following statements on biosphere reserves is not correct? [CDS 2010] (a) In 1973, UNESCO launched a worldwide programme on man and biosphere (b) Biosphere reserves ... Pradesh (d) Biosphere reserves are multipurpose protected areas to preserve the genetic diversity in ecosystems

Last Answer : Ans: (c)

Deforestation results in : 1. flora destruction 2. fauna destruction 3. ecological disbalance (a) 2 and 3 (b) 1, 2 and 3 (c) 1 only (d) 1 and 3

Description : Deforestation results in : 1. flora destruction 2. fauna destruction 3. ecological disbalance (a) 2 and 3 (b) 1, 2 and 3 (c) 1 only (d) 1 and 3

Last Answer : Ans: (b)

Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Description : Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Last Answer : (4) understanding the delicate balance in the relative number of organisms Explanation: Ecological balance is a state of dynamic equilibrium within a community of organisms in which genetic ... this balance, the delicate balance between the organisms constituting and ecosystem should be understood.

Which of the following is called the "ecological hot spot of India"? (1) Western Ghats (2) Eastern Ghats (3) Western Himalayas (4) Eastern Himalayas

Description : Which of the following is called the "ecological hot spot of India"? (1) Western Ghats (2) Eastern Ghats (3) Western Himalayas (4) Eastern Himalayas

Last Answer : (1) Western Ghats Explanation: A biodiversity hotspot is a region with a significant reservoir of biodiversity that is under threat from humans. More like rolling hills than snow-covered mountains, the Western ... and animal species; many of which are only found here and nowhere else in the world.

There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wild-life (3) raising precipitation (4) ecological balance

Description : There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wild-life (3) raising precipitation (4) ecological balance

Last Answer : (4) ecological balance Explanation: Ecological balance has been defined by various online dictionaries as "a state of dynamic equilibrium within a community of organisms in which genetic, species ... woodland. It restores eco-logical balance of all ecosystems and maintains bio-logical diversity.

What should be the proportion of forest cover for India to maintain her ecological balance? (1) 11.1 percent (2) 22.2 percent (3) 33.3 percent (4) 44.4 percent

Description : What should be the proportion of forest cover for India to maintain her ecological balance? (1) 11.1 percent (2) 22.2 percent (3) 33.3 percent (4) 44.4 percent

Last Answer : (3) 33.3 percent Explanation: The minimum area of forests to maintain a good ecological balance has been regarded to be 33%. India lags on this front. The Green India campaign has been ... the Prime Minister for the afforestation of 6 million hectares. The current area under forests is 23%.

Among the following biogeochemical cycles, which one does not have losses due to repiration?

Description : Among the following biogeochemical cycles, which one does not have losses due to repiration?

Last Answer : Among the following biogeochemical cycles, which one does not have losses due to repiration? A. Phosphorus B. Nitrogen C. Sulphur D. All of above

Which one of the following is not a gaseous biogeochemical cycle in ecosystem?

Description : Which one of the following is not a gaseous biogeochemical cycle in ecosystem?

Last Answer : Which one of the following is not a gaseous biogeochemical cycle in ecosystem? A. Phosphorus cycle B. Nitrogen cycle C. Carbon cycle D. Sulfur cycle

In which of the following biogeochemical cycles is at mospheric phase absent/negligible?

Description : In which of the following biogeochemical cycles is at mospheric phase absent/negligible?

Last Answer : In which of the following biogeochemical cycles is at mospheric phase absent/negligible? A. Nitrogen B. Sulfur C. Phosphorus D. Water

Biogeochemical cycle having a small gaseous component is found in

Description : Biogeochemical cycle having a small gaseous component is found in

Last Answer : Biogeochemical cycle having a small gaseous component is found in A. Phosphorus B. Nitrogen C. Carbon D. Sulfur

Are reservoirs that chemical elements can move through as part of the Earth's biogeochemical cycle I.the solid Earth II.Earth's oceans III.Earth's atmosphere IV.organisms on Earth?

Description : Are reservoirs that chemical elements can move through as part of the Earth's biogeochemical cycle I.the solid Earth II.Earth's oceans III.Earth's atmosphere IV.organisms on Earth?

Last Answer : Need answer

What are biogeochemical cycles ?

Description : What are biogeochemical cycles ?

Last Answer : Biogeochemical cycles are representations of the circulation and recycling of matter in nature. The main biogeochemical cycles studied in Ecology are the water cycle, the carbon cycle, and the nitrogen cycle.

Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Description : Increase in concentration of the toxicant at  successive trophic levels is known as (a) biotransformation  (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Last Answer : (c) biomagnification

Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Description : Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.

Last Answer : (c) biomagnification

Which of the following pairs is a sedimentary type of biogeochemical cycle? (a) Phosphorus and nitrogen (b) Phosphorus and sulphur (c) Oxygen and nitrogen (d) Phosphorus and carbon dioxide

Description : Which of the following pairs is a sedimentary type of biogeochemical cycle? (a) Phosphorus and nitrogen (b) Phosphorus and sulphur (c) Oxygen and nitrogen (d) Phosphorus and carbon dioxide

Last Answer : (b) Phosphorus and sulphur

Which one of the following is not a gaseous biogeochemical cycle in ecosystem? (a) Sulphur cycle (b) Phosphorus cycle (c) Nitrogen cycle (d) Carbon cycle

Description : Which one of the following is not a gaseous biogeochemical cycle in ecosystem? (a) Sulphur cycle (b) Phosphorus cycle (c) Nitrogen cycle (d) Carbon cycle

Last Answer : b) Phosphorus cycle

Which one of the following is not a gaseous biogeochemical cycle in ecosystem ? (1) Carbon cycle (2) Sulphur cycle (3) Phosphorus cycle (4) Nitrogen cycle

Description : Which one of the following is not a gaseous biogeochemical cycle in ecosystem ? (1) Carbon cycle (2) Sulphur cycle (3) Phosphorus cycle (4) Nitrogen cycle

Last Answer : (3) Phosphorus cycle

The significant quantity of upper soil is formed by – (1) Igneous rock (2) Sedimentary rock (3) Metamorphic rock (4) Biological degradation

Description : The significant quantity of upper soil is formed by – (1) Igneous rock (2) Sedimentary rock (3) Metamorphic rock (4) Biological degradation

Last Answer : (2) Sedimentary rock Explanation: The significant quantity of upper soil is formed by Sedimentary rock.

Define (i) ecosystem or ecological system (ii) flora and fauna. -SST 10th

Description : Define (i) ecosystem or ecological system (ii) flora and fauna. -SST 10th

Last Answer : (i) Ecosystem or Ecological system : The complex interactions, interrelationships and interdependencies between living organisms form an ecosystem or ecological system. No living organism, plant, animal, micro- ... is a natural flora, and tiger, the national animal of India is example of fauna.

Assertion: Ecological sanitation is a sustainable system for handling human excreta. Reason: It is a practical and hygienic method of using dry compos

Description : Assertion: Ecological sanitation is a sustainable system for handling human excreta. Reason: It is a practical and hygienic method of using dry compos

Last Answer : Assertion: Ecological sanitation is a sustainable system for handling human excreta. Reason: It is a ... and Reason are false, then mark (4).

Which of the following is not a system under which classification of Agro-forestry System is done? a. Ecological Basis b. Socio-economic Basis c. Functional Basisd. Monetary Basis

Description : Which of the following is not a system under which classification of Agro-forestry System is done? a. Ecological Basis b. Socio-economic Basis c. Functional Basis d. Monetary Basis

Last Answer : d. Monetary Basis

Which of the following is not a system under which classification of Agro-forestry System is done? a. Ecological Basis b. Socio-economic c. Functional Basis d. Monetary Basis Basis

Description : Which of the following is not a system under which classification of Agro-forestry System is done? a. Ecological Basis b. Socio-economic Basis c. Functional Basis d. Monetary Basis

Last Answer : d. Monetary Basis

………………… is an ecological system of agriculture

Description : ………………… is an ecological system of agriculture

Last Answer : Nomadic herding

What is ecological restoration?

Description : What is ecological restoration?

Last Answer : Ecological restoration is the process of repairing damaged or degraded ecosystems to their original state, and is an important concept in environmental science and conservation biology.

Bottle/Glass recycling - any possible ecological benefits to bringing them to the supermarket?

Description : Bottle/Glass recycling - any possible ecological benefits to bringing them to the supermarket?

Last Answer : answer:Do you mean putting them in with the regular trash which you leave at the curb for pickup or do you mean putting them separately in their own container? When I lived in Phila. there were separate ... know why more states don't do likewise since it works so well. It's a mystery to me.

Would raising the driving age have significant ecological benefits?

Description : Would raising the driving age have significant ecological benefits?

Last Answer : Some of them might take public transportation and some of them would have someone else drive them.

Is there an ideal ecological state from the past? If so, what is it?

Description : Is there an ideal ecological state from the past? If so, what is it?

Last Answer : I think no ideological state of any kind existed in any past but I do think there are certain modern trends that are quite unlike the past in terms of how people interacted with their ... a need for sustainability in some previous cultures and some current cultures (like Native American cultures).

Is there any positive ecological effect possible from the Gulf oil spill?

Description : Is there any positive ecological effect possible from the Gulf oil spill?

Last Answer : answer:Good question. I wonder if the spilled oil is different than natural, fresh-out-of-the-ground oil. If so, the question would fundamentally change, because the oil wouldn’t be a naturally occurring product as-is. Check this out.

Has anyone considered the following historic/ecological irony?

Description : Has anyone considered the following historic/ecological irony?

Last Answer : 5.5 billion years from now? Not my problem.

What should be the area under forest cover to maintain ecological balance? -Geography

Description : What should be the area under forest cover to maintain ecological balance? -Geography

Last Answer : Ecological balance refers to the balance of ecosystems which is maintained by the abundance of forest cover,vegetation, wetlands, rivers and streams and the harmony between the living organisms ... the natural balance. The percentage of forest cover which maintains ecological balance is 33%.

Irrigation has changed the cropping pattern of many regions with farmers shifting to water intensive and commercial crops”. Mention its ecological consequence. -SST 10th

Description : Irrigation has changed the cropping pattern of many regions with farmers shifting to water intensive and commercial crops”. Mention its ecological consequence. -SST 10th

Last Answer : Salinisation of the soil

How does afforestation help in maintaining ecological balance? -SST 10th

Description : How does afforestation help in maintaining ecological balance? -SST 10th

Last Answer : We human along with all living organisms form a complex web of ecological system in which we are only a part and very much dependent on this system for our own existence. For example, the ... in the ecological system as these are also the primary producers on which all other living beings depend.

What is the ecological role of lichens? -Biology

Description : What is the ecological role of lichens? -Biology

Last Answer : answer:

What is the interrelated food chains in an ecological community? -Do You Know?

Description : What is the interrelated food chains in an ecological community? -Do You Know?

Last Answer : answer:

what Using the ecological pyramid, explain how animals we think of pests (e.g. mosquitoes) are important to an ecosystem.?

Description : what Using the ecological pyramid, explain how animals we think of pests (e.g. mosquitoes) are important to an ecosystem.?

Last Answer : By now, you have learned that there is a lot of interaction between all the components of an ecosystem. However, did you know that we can represent this relationship between the energy ... a diagrammatic format. The predictable changes that are seen in organisms are shown by ecological succession.

Barind and Madhupur region belong to which agro-ecological zone ?

Description : Barind and Madhupur region belong to which agro-ecological zone ?

Last Answer : Barind and Madhupur regions belong to agro-ecological zone 25 .

What are the levels of organic matter in agro-ecological zones 3 , 7 and 8 ?

Description : What are the levels of organic matter in agro-ecological zones 3 , 7 and 8 ?

Last Answer : Organic matter levels in agro-ecological zones 3, ৭ , and are mild to moderate.

What is the nature of soil of agro-ecological zone 9 and 19 ?

Description : What is the nature of soil of agro-ecological zone 9 and 19 ?

Last Answer : Soil nature of agro-ecological zones 9 and 19 is moderately low.

How many agro-ecological zones have Bangladesh been divided into according to soil characteristics ?

Description : How many agro-ecological zones have Bangladesh been divided into according to soil characteristics ?

Last Answer : Bangladesh has been divided into thirty agro-ecological zones according to soil characteristics.

What are the types of ecological pyramids ?

Description : What are the types of ecological pyramids ?

Last Answer : There are three types of ecological pyramids: (1) number pyramid , ( 2) energy pyramid and (3) living pyramid.

What is an Ecological Pyramid ?

Description : What is an Ecological Pyramid ?

Last Answer : Ecological pyramid or ecological pyramid.

What is the difference between environment, ecosystem and ecological community?

Description : What is the difference between environment, ecosystem and ecological community?

Last Answer : Environment refers to one's overall surrounding that facilitates growth and development. An environment becomes inhabitable when it has the resources that a species needs for it to persist. This brings ... of plants, animals and other organisms interacting at the same time within a common habitat.

A scorpion stalks, kills, and then eats a spider. Based on its behavior , which ecological terms describe the scorpion ?

Description : A scorpion stalks, kills, and then eats a spider. Based on its behavior , which ecological terms describe the scorpion ?

Last Answer : A scorpion stalks, kills, and then eats a spider. Based on its behavior , which ecological ... carnivore, consumer D. predator , autotroph, herbivore

Given below is one of the types of ecological pyramids. This type represents

Description : Given below is one of the types of ecological pyramids. This type represents

Last Answer : Given below is one of the types of ecological pyramids. This type represents A. pyramid of numbers in ... in a lake D. energy pyramid in a spring

Ecological hotspots present in India are

Description : Ecological hotspots present in India are

Last Answer : Ecological hotspots present in India are A. One B. Two C. Three D. Four

Ecological backlash (or ecological boomerang) is

Description : Ecological backlash (or ecological boomerang) is

Last Answer : Ecological backlash (or ecological boomerang) is A. Heat emission due to bomb explosion ... adverse ecological effect by a previously useful chemical

During ecological succession:

Description : During ecological succession:

Last Answer : During ecological succession: A. the changes lead to a community that is in near equi- librium ... D. the number and types of animals remain constant