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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 contribufjwgb1g 1mj*/te to the problem of microplastic pollution in marine j1*gg /w1bfmj 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 decrcp-8k 7o2a.ulc5w pl7w6.u e gqdw si4eased from 18.8 million hectares to 15.3 million hl i4u. dpeql p2cws 67 8wo.k7c-agwu5ectares between 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 co37r/eee n(.dx0d r cc qaxtl)1ntribute 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 leaching of nitrogen anmcy0qn dtl 1*s o3o4e+qs .fs9xiz80nd phosphate fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local freshwater ecoe+o. qnt 40s3s fq1nol*x09dm8icsz ysystems (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 mesoclh6* wwn8h/d7ci -cfjosm is persisting despite being sealed for over 50 years.i 87d*/ ww- lcfhcj6nh
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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 thab3yk( hssa ++k7uto+ ct are needed from outside the sealed system to maintain itsktuk7 +ys+h3bo+(c as
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 sealwx( pu8 kq4trj(- fg:aed mesocosm models the ecosystem of planet earth(4t:uja gf-xrwk8 p( q.
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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 maintenanjai7 jd ,cx*ojcf4zej9, pm; :ce of a stable ecosystem7o*4efjc,ca j ,;d:mjzxi p9j.
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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 consumptiax+:f v s.mam5on. Outline how harvesting of fish can be sustainable and howa mxv:. smf5+a 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,m x0u*j3fo9)eyc5 xpo how the changes that occur in primary succession can lead to0j 9 yxmo5u3 eco*)xpf a climax community which has cyclical succession.
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