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习题练习:SL/HL Topic D4.2 Stability and change



 作者: admin   总分: 10分  得分: _____________

答题人: 匿名未登录  开始时间: 02月01日 01:26  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 1 题组 (共 4 题 4 分)
  1. Which of the following contribute to the problem of microplastic pollutio/k 4ftpuv6:b en in marine environmeb6:ef tk/vup4 nts?
I. Persistence of microplastics.
II. Biodegradability of microplastic.
III. Non-biodegradability or microplastic.
IV. Increased biochemical oxygen demand.

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2#
 
单选题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
  2. In Botswana, forest cover decreased++ cb6b1oe ir.q 2ink**qr qyn from 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Caq6q b.+nc1* iebqki yor2nr+* lculate the percentage loss in forest cover during this period.

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3#
 
单选题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
  3. Which of the following d2 ubkg/icq*83 pujq -uoes not contribute to ecosystem stability?

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4#
 
单选题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
  4. Why does leachingv 7;ulso1dw7unmnpt;o0 x)u2 of nitrogen and phosphate fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local fresh7;1x)0;nouuwl2nsuto 7 vdpmwater ecosystems (lakes and rivers)?

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5#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第1/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
a. Suggest why the mesocosm is persisting despite being sep.y:g q+ kw;obaled for over 50 years.o +b; pk:qygw.
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6#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第2/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
b. State two factors that are needed from outside the kt5og hs zdk/w5nm)u/x1pi80 sealed system to maintain ikixu58p//dt5hmg 1 onw 0) kzsts
sustainability.
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7#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第3/3题
题组内容描述:
5. David Latimer created the mesocosm pictured below. It was last watered in 1972 and has been sealed ever since that date. It is still viable (living).
c. Discuss to what extent this se:j+xz m,vn .pypg)/nsaled mesocosm models the ecosystem of planet eart p:smvn,)jz gp+/.ny xh.
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8#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 3 题组 (共 3 题 3 分)
6. Outline the role of keystone species in the maintenance of a stable ecosystoew8 ntmj;e90sl+666 xrgu ni em.oe9j ls6ng0tu ew 6nm8 x;r6+i
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9#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
7. Fish are a renewable resource for human consumption. oztv jkz/h/y . b:5g, 5o4oqdiOutline how harvesting of fis5.qdzob, ot vgio4 zyk//h j:5h can be sustainable and how sustainability can be assessed.
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10#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
8. Describe, with an example, how the chano/) h,y)ayd - kpyljybbt hl/e0 8:zr:ges that occur in primary succession can lead to a climax community which has cy:obyet h/) /ly8r: z0)ahy bpl kdj-,yclical succession.
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