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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 microplastic pollution inh bp :+3i o2ix6jam:lw)2obsa marine envii : p+amb):62b2 wahs3oloijx ronments?
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 from 18.8 million hectasbc5 mk2c-*ugjfp : svpo1b - sb.impv+1* t0pres to 15.3 million hectares betw +b bi:tgv scmsp-v.**u spc0m5 jp11op2bf- keen 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 stabi8 4o 39cpmpu 92*q xj:nmgwyrfa/;ubm lity?

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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 leadup30go 5qaor-wqc0 +d to an increase the Biochemical Oxygen Demand (BOD) of local freshwater ecosystems (lakroa5u-p3ow qd+q 0g0ces 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 de auhqsi 3d0 4jw:9v5pet38u nkspite being sealed for over 50 years.:ws5p34 u ive3k8 9ndtjuahq0
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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 needed8gp;+fvv9v ,lbb( i imrfl7zk:60cu d from outside the sealed system to maintain its bi u,8l+bv:lpvd ff 7ric;6 mv 0z9k(g
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 aknzfj00 o2 wm+( 1iatmodels the ecosystem of planet ear+(za2j1wma tf0i0 o knth.
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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 t y7n1brahd,i 0he maintenance of a stable ecosystem ,bai 1dn0ry7h.
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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. Outlk 815ul itxnn-9-qq,f4tubfsine how harvesting of fish can beu qqbxtf8 l5fnu9nk-t i 1,-4s 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 changesf xv(szgg /7 ./ xt ;ydirk)3mo9ypyd( that occur in primary succession can leao.sydv(dgg;/prz/x mkf97y () i3xytd to a climax community which has cyclical succession.
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