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| From: madhu_pk | Reply 1 of 12 | Reply | |
| 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)
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| From: madhu_pk | Reply 2 of 12 | Reply | |
| 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)
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| From: madhu_pk | Reply 3 of 12 | Reply | |
| 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)
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| From: madhu_pk | Reply 4 of 12 | Reply | |
| 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)
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| From: madhu_pk | Reply 5 of 12 | Reply | |
| 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)
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| From: madhu_pk | Reply 6 of 12 | Reply | |
| 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)
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| From: madhu_pk | Reply 7 of 12 | Reply | |
| 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)
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| From: ezhilmathi | Reply 8 of 12 | Reply | |
| 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)
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| From: ezhilmathi | Reply 9 of 12 | Reply | |
| Subject: Contributed Answer/Explanation to Q. 20 |
1) bio-gas 2)solar energy
Posted at: Wed Dec 1 15:09:47 2010 (GMT)
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| From: kshirsagaravinash1436 | Reply 10 of 12 | Reply | |
| 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)
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| From: kshirsagaravinash1436 | Reply 11 of 12 | Reply | |
| 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)
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| From: kshirsagaravinash1436 | Reply 12 of 12 | Reply | |
| 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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