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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: 匿名未登录  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 ua4irflj6u1qdz + z8,i97ga dthe problem of microplastic pollution in marine environgz a, 1jduzl +q8u4rf97ida i6ments?
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 f5zjbfyhy7a6 g5m v1eq8q(cy( l7 y gq5rom 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Calculate the percentage loss in forest cover during7em85 gyq7 (b q vzlya 6yf5y5j(1chgq 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 cont 8m vu6,b1tj ;6faseaqewhl,2ribute 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 and phosphate fertilisers leadgc1ebowlj 7, 7 to an increase the Biochemica cg7b7,woejl 1l Oxygen Demand (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 ikg39gyr.h8m9 n :zb qys persisting despite being sealed for over 50 yearsqk8 rny 3mby: 9z9hg.g.
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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 needejyc p- sdx5/2jd from outside the sealed system to maintain its -j2j pxc/y5sd
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 planet ea8 nj9cf.)jpnrbx /eg31 m8pnyrth.8n9j em 1y/b jnx)r8np.cfpg 3
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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.ekl-5rgk- k60h y5 vabtlvd: maintenance of a stable ecosystem5hlk :bdkvkl .0 v-y -5rgate6.
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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. Outlin.d vftsmy38 t- wtul4,e how harvesting of fish cwu.ftm 43tdytv -,8ls an 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 successicxn1ue f4 nz+8on can lead to a climeun cznf4x 18+ax community which has cyclical succession.
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