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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 proso9gxx2)e/ v ablem of microplastic pollution in marine environments?x29xvea/)so g
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 covers q3impqe lt.pi:u57 ) decreased from 18.8 million hectares to 15.3 million hectares betweenis)tq le:p3iq7p.m u5 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 smu1 bs5ibs(9u tability?

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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 o)e-v wcphvr42b2etg( rq:ms/ qs .)fdf nitrogen and phosphate fertilisers lead to an increase the Biochemical Oxygen Deqs:c. -)eehqm gbt22 rs)v/r fdwp4 (vmand (BOD) of local freshwater 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.zu;-;/ +asffd mw2 .akyk lcf sealed for over 50 years.. kw czlu;d-as k/.+f2;mfya f
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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 th,m0 +vk qbkwz0i xpx zh*-yb0:e sealed system to maintain its 00b*y,zhkmxq:bz+ i -0 pxwvk
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 m;z4;a8gqxlq godels the ecosystem of planet eartg4x; q;qg 8zalh.
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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 keystonxeu8sajls q)we w2z)/b+ +ss5e species in the maintenance of a stable ecosystem.+ sbq+ z)s)8w /ewas 2sujlx5e
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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. Outline how harvestinghzm32sy)z(pr1x lo nln 20m2z of fish can be sl)r nzxlpzmz no(10mh22 y2s3ustainable 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 s;fz07d ocj*q :af sj0that occur in primary succession can f s;a *z:fcsqo0jd 07jlead to a climax community which has cyclical succession.
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