קיימות 2024

Discuss, Learn and be Happy דיון בשאלות

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Given that species play a major role in modifying and stabilizing ecosystem functions, we sometimes consider them as:

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שאלה #133277

		Ecosystem multipliers
		Ecosystem services
		Ecosystem changers
done		Ecosystem engineers

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מיין לפי דירוג חדש ישן

Large areas are:

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שאלה #133278

		Harbor high heterogeneity
		Harbor many habitats
		Harbor high species richness
done		All of the above

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מיין לפי דירוג חדש ישן

Open lands are:

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שאלה #133279

done		Areas of land without human-built structures
		Nature reserves only
		Nature reserves and non-protected natural habitats
		Agricultural landscapes only

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מיין לפי דירוג חדש ישן

The economic value of world's ecosystem services to human beings, according to Constanza and his colleagues (1997), is:

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שאלה #133280

		An average of US $ 16 trillion per year
		An average of US $ 54 trillion per year
done		An average of US $ 33 trillion per year
		Cannot be evaluated

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מיין לפי דירוג חדש ישן

Provisioning services are:

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שאלה #133281

		Services required for the existence of the other ecosystem services
done		Products obtained from ecosystems
		Benefits obtained from the regulation of ecosystem processes
		Nonmaterial benefits people obtain from ecosystems through spiritual enrichment, cognitive development, reflection, recreation and aesthetic experiences

נערך לפני חודשיים

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מיין לפי דירוג חדש ישן

The recent estimate of the number of people throughout the world that go to sleep every day without any dinner, is:

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שאלה #133282

done		1.8 billion
		1 billion
		0.5 billion
		200,000

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מיין לפי דירוג חדש ישן

How much of the earth's land area is already used for different agricultural cultivations and agricultural-related activities?

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שאלה #133283

done		40%
		30%
		20%
		10%

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מיין לפי דירוג חדש ישן

Land sparing refers to:

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שאלה #133284

		A clear integration between the natural habitat area and the agricultural area
done		A clear separation between the natural habitat area and the agricultural area
		Combination of natural habitat area and agricultural fields
		A subset of the land sharing method

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מיין לפי דירוג חדש ישן

The term that reflects movement from one patch to another, through short-distance dispersal, in a landscape, is:

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שאלה #133285

done		Stepping stones
		Long-term dispersa
		Isolation
		Connectivity

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מיין לפי דירוג חדש ישן

Hedgerows may contribute to wildlife-friendly agriculture by:

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שאלה #133286

		Attracting pests
		Isolating different subpopulations from breeding
		Ensuring clear habitat without arthropods
done		Conserving arthropod communities within agricultural landscapes

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מיין לפי דירוג חדש ישן

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