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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: 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 x3lc-jej yk-ot( w:n5bsams/ )lj5 7 ocontribute to the problem of microplastic pollution in marine enviro7l xtwse l-s3-b ajo(jo5 mycnj :)k/5nments?
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 decc.u6h5plnh b-3)l b( n a5z*nzu:gkghreased from 18.8 million hectares to 15.3 million hectares between 1990pgn*( hb3hl - l5)c:ang .h5bznukz6u 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 followi9/u;wzvw m- 7/cj- f chtscm2bng does not contribute 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.ds2e z1y h9djp1kda2 nitrogen and phosphate fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of loe11h a 9p2d 2y.sdzdjkcal 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 sealecq. zaj;ig gls z3z27*d for over 50 years zzlig.*a 27jq czgs;3.
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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 fromridyn3l)kaa) +l 6sl g:r faas7lv.. 5 outside the sealed system to maintain its ll)sriv a fg.+ra.6d3:sn 7lk aa )yl5
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 esw37sovzso iai1go:ubm*7.9 9 /d ouy arth.. : wisvas*m1/9soobu7i97dz 3 oyguo
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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 thel ccs w3(x+5i+hgb(wv maintenance of a stable ecosystem.b5+wi+s wcv((x g3hlc
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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 harvesti+ 2 -bqdut0v eiync p+4y8ir+gng of fish can be sustainable an2 vqi+0g n-t+d4py+r8uei yc bd 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 py0xhz t4vn dnk4b8ch de1l68b;c3qw.rimary succession can lead to a climax community6khxl 0c8; 4. vb y zdnqwcht81db43ne which has cyclical succession.
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