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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 problem of mr7t qrgqn ju:::r 76iu ce1ly3icroplastic pollution in marin:u:i67qtjrlc 3urnr 7q:eyg1e 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, forestp ,)2qq 1vg444:zjafnhrfxna; +icwy cover decreased from 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Calculate the percentage loss in forest cover ffq2 )ayv 4wp,i+: nqrhz jc;xa1 44gnduring 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 stabil-wd f(z2y gyfu:yb,6rity?

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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 l :b8 gvoajm4 0hv(;p8u)jsmsto an increase the Biochemical Oxygen Demand (BOD) of local freshwater ecosystems (4)js 8s;u8vvmm h (bjol:0gpalakes 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 meso+ ycudtagy6j z* e0/iyr;6.cocosm is persisting despite being sealed for over 50 yearsceyj+ui ca. tg06; y 6yzd*r/o.
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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 the seal,q kg1ahq9f+gdkv 9 6b0vk48 hc/cfq7s 5ijkfed system to maintain its jkc/+1 k9cvdgs f ,kv9gakqq 47b80 fh qhf65i
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 thjpkp/zw4 ;qi4vx.(r me ecosystem of planet ear w.4(;kq mxvpzi /4pjrth.
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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 spec x zatdd p)w (v4r8c9kr2pt;/wies in the maintenance of a stable ecosystem/;4)92xvtpwrp(ck trdazw8d.
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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 harve7b acsdn9)o,b zvg,+ot( e+mg sting of fish can be sustainable and how sustainability can be asseo co z v,m+stb+,ned9b)g7a g(ssed.
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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, howunbn r,,xhz *: the changes that occur in primary succession can lead to a climax community which hab,u x,r* znhn:s cyclical succession.
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