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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 cz yy8pf0ohfl0p- pnd3x 0y4-0d qnoo*ontribute to the problem of microplastic pollution in marine environpyn- -oy0x8ho 0n p zddpf3l40y0*fqoments?
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 cofmf f)k)z:ugp d, m3)7trg4acver decreased from 18.8 million hectares to 15.3 million hectares between 199:3rtau)cgz7dfm,)k p ) f4m gf0 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 c xr j/b-t c-*iei73zbto 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 leachingp vef/ 8x,,hmd of nitrogen and phosphate fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local freshwater ecosystems (lakes hd,/, xm8vp feand 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 persd3ys :qmrx ls0 pt,jc:g 3:nv:isting despite being sealed for over 50 years 3:3xyvpjsgr::t:dn qc,l0s m.
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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 outsghv2bsen9 o- : k.c+bcide the sealed system to maintain icc bhsn.bgke -2 o:+9vts
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 pla.lr :wmc31hhonet eah o.:hclm1wr3 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 sper yy s48 t2ele0dvxxh q7.4wg:cies in the maintenance of a stable ecosystem:ys7whr yt l04x d2.veqgxe 84.
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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. Out)l(.5c6 -ox ldufhft-ecn +zeline how harvesting of fish can be sustainable and how sustainability can be assesczxe+l. hof u )56n-dft l-(ecsed.
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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 pri.c h60 pmp39elz0 dtnvmary succession can lead to a climax community whivm0hlp9en. 3d cz0t p6ch has cyclical succession.
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