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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 pollutn:cz+ 0z-(ihandk,dny,i r3q ion in ma(qr,0cindani-yz:dh kzn 3 +,rine 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 decreased4mquwsbj r kr7+l+m/ae 4c4b94-rz m r from 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Calculate the perce4q+r4ez4k w 4a m7cmj-r rb9 rmus+b/lntage 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 ecosyst;nj+ mu m08lt ll9/vl n5ejv(tem 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 leaching of nitrogen and phosphj; u8r2 ;c+hhz o*dkyefrde./ ate fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local freshwater ecosystems (lakes and riversocr+u*dfyz jdeh 8r;. h/2e k;)?

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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 mesqong3wiks ;y4h..d 8yuny c- lp.xj 5,ocosm is persisting despite being sealed for over 50 years...58 is4g,dlx;n.3o ycwyq-pkjuhyn
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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 sealed system to maintainf7(cmx3* edz t it*tem zxfd (3c7s
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 mpxqn+0qd4g*x q bq 9n5esocosm models the ecosystem of planet eaq0bg q+ 5dq nq9xx4pn*rth.
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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 maind al7tov djbehvkb 4by0(768 .qd gf86tenance of a stable ecosystem.btb(de86vv. 7q4 d 6a yf g708bljodhk
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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 renewabl fsh,ghkuu1mt)zb42 .e resource for human consumption. Outline how harvesting of fish can be sustainable and how sustainability can be ass2, zgu.fbs u)hth4mk 1essed.
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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 ex(rujje9i8)u- hqvvz.k,8+ req ,jhti ample, how the changes that occur in primary succession can lead to a climax community which has ci9- ,e(j8.qvqeih j,vu k+t rh8u)zrjyclical succession.
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