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From: madhu_pkReply 1 of 12Reply
Subject: Contributed Answer/Explanation to Q. 1
   
   
   compressed natural gas
   
   
   advantage:
   
   
   it is clean n non polluting n can be directly supplied thru pipes

Posted at: Sun Mar 21 11:54:26 2010 (GMT)

From: madhu_pkReply 2 of 12Reply
Subject: Contributed Answer/Explanation to Q. 3
   
   
   1. oceans are abound with many resources which are useful to animals and
   humans.
   
   
   2. oceans are carbondioxide sinks i.e., they absorb carbondioxide from the
   atmosphere

Posted at: Sun Mar 21 11:56:14 2010 (GMT)

From: madhu_pkReply 3 of 12Reply
Subject: Contributed Answer/Explanation to Q. 4
   
   
   1. wildlife protection act
   
   
   2. biological diversity act

Posted at: Sun Mar 21 11:57:06 2010 (GMT)

From: madhu_pkReply 4 of 12Reply
Subject: Contributed Answer/Explanation to Q. 5
   
   fungicides are chemical or biological agents which kill or inhibits the
   activities of the fungus

Posted at: Sun Mar 21 11:58:05 2010 (GMT)

From: madhu_pkReply 5 of 12Reply
Subject: Contributed Answer/Explanation to Q. 6
   
   
   1. people harvested rainwater. from rooftops, they collected rainwater and
   stored it in open tanks built in the courtyard.
   
   
   2. people harvested water from swollen streams and stored it in artificial
   wells.
   
   
   3. people harvested water from flooded rivers.

Posted at: Sun Mar 21 12:00:05 2010 (GMT)

From: madhu_pkReply 6 of 12Reply
Subject: Contributed Answer/Explanation to Q. 8
   
   eco efficiency is defined as use of goods and services which satisfies basic
   human needs without having any ecological impacts

Posted at: Sun Mar 21 12:01:53 2010 (GMT)

From: madhu_pkReply 7 of 12Reply
Subject: Contributed Answer/Explanation to Q. 9
   
   agro forestry is defined as the sustainable system of managing  piece of
   land thru combined production of agricultural and forest crops and animal
   rearing to ensure the most efficient land use under a management system.

Posted at: Sun Mar 21 12:03:31 2010 (GMT)

From: ezhilmathiReply 8 of 12Reply
Subject: Contributed Answer/Explanation to Q. 17
   
   gases responsible for acid rain are sulphur dioxide(SO2) and nitrogen
   dioxide(NO2) 

Posted at: Wed Dec 1 15:06:11 2010 (GMT)

From: ezhilmathiReply 9 of 12Reply
Subject: Contributed Answer/Explanation to Q. 20
   
   1) bio-gas 2)solar energy

Posted at: Wed Dec 1 15:09:47 2010 (GMT)

From: kshirsagaravinash1436Reply 10 of 12Reply
Subject: Contributed Answer/Explanation to Q. 14
   
   eutrophication is the mixture of nitrates and phosphates which leads to
   algal bloom making the water unfit for drinking.source of nitrates are the
   chemicals and the source of  phosphates are the detergents from the
   bathrooms and it is a major cause of eutrophication 

Posted at: Sun Jan 2 08:57:16 2011 (GMT)

From: kshirsagaravinash1436Reply 11 of 12Reply
Subject: Contributed Answer/Explanation to Q. 21
   
   Adulteration is the process in  which inferior goods and mixed with other
   goods decreasing its quality and harms the consumers making them sick or
   affecting body parts .An example of food adulteration is, mixture of starch
   and water in milk

Posted at: Sun Jan 2 09:06:07 2011 (GMT)

From: kshirsagaravinash1436Reply 12 of 12Reply
Subject: Contributed Answer/Explanation to Q. 9
   
   
   planting of trees and carrying out agriculture and forests on the same land.
   
   
   
   An advantage is that it increases tree cover 

Posted at: Sun Jan 2 09:12:25 2011 (GMT)

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