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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 )zmqohb21 q99s fzhdkgc 4kt- qfw.4; to the problem of microplastic pollution in 4 kqd 99qckt24sbgmhwf.z) ho1;zq-f marine 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, fores j;vs:f*ws sd9t cover decreased from 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Calculate the percef;s:vws dj9*s ntage 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 ecosystemdy ;ff p+*ny2r-b)ljz 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 phosphate fertilisers lead to an inuqd0m(ne4,d k yfh7o 3crease the Biochemical Oxygen Demand (BOD) of local freshwaykndq e 7mo30(d4uf, hter 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 beina37og06ncq 5fz tftc;g sealed for over 50 years.5;z ncg7qt3 6ftcfoa 0
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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 thy8g,9 ktt.ut1 9ism xsat are needed from outside the sealed system to maintain its 8ux.s tk,gtys91 9mit
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 bb6 bf amtc5i/ ,l4+tmof planet eara5bi mb c,fbm46tt+/lth.
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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 r9-: vthdq idvrhrnr5 )w( k5:species in the maintenance of a stable ecosystem rrkq:dh9ivdn (v 5rrhw)-5:t .
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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 resour**ssu vc0j z0* 8pntdmce for human consumption. Outline how harvesting of fish can be sustainable and how sustainabilndt8zm0c*ujp 0 s*v*s ity 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 cg tk+ey e9w, k;(iblq)hanges that occur in primary succession can lead to a climax community which has cyclical suc kitw+,eq)ygb ;ekl9(cession.
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