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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: 游客未登录  开始时间: 25年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, oo+ aa 8cr-pn0emvhkl8n; k7 pollution in mari0v o8pahmnclr, 7k 8oe+; n-kane environments?
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 from 18 5 ewzttlod2cz *-/ ll/i1r7ar.8 million hectares to 15.3 million hectares betweel zelowa i1r52-/7 c/rdtz*tln 1990 and 2020. Calculate 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 does not contribute to ecosystem stabpgd o(fd -5um;ility?

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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 leaching of niforqf/ x o4l l:ql7s/qkq,;;a trogen and phosphate fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local freshwat lf/rakq;oll7fqxq,soq/4;: er 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 sealej7 7+o)sjajy44,blw iwd.v8p .a6ugrv vs3fd d for over 50 years7 a ds )7lda owvbr4vg4 iy 3jpu,vjf+.j.6w8s.
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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 si iwg0jg lw7)8ealed system to maintain itggj)i8lw7 0w is
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 sealed mesocosm models the ecosystem of planevp 2;f. gknxv gpf6.7r)*c(gsd2ogqqt earq.r7ck(svfgv)g2nx .dqgo 62*p pgf ;th.
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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 speci(b.p ab jeqq-zth 2se0cm(tv90 jlv21es in the maintenance of a stable ecosystem.c.0 bzmjqp 22-j1 vatelb h(vq 9et(s0
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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 ha14m8(ru7,o req onrd8- pb yfuman consumption. Outline how harvesting of fish can 4nrao1o (p8u -bq,7redyf8 mr 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 changes that occur in primary succy9 u rfp6-bob0if 33m 9s,epfcession can lead to a climax community which has cyclical s,- 3sb6fmffou epc9y90r i3p buccession.
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