ENVIRONmental help.......

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define:salinisation

explain:
1.beej bachao andolan
2.ganga action plan

thnx in advance

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plz help guyz.....

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he guyz.i thnk ur busy n so cudnt reply to my post...
anyway plz send ans if u have

som other douts:
What is known as sanitary landfills?
What are bio pesticides/ (organic pesticides) Give two examples(exactly)
write in brief about tehri dam?(is it in syll???

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Beej Bachao Andolan was started by Vijay Jardhari along with other activists frm Jardhargaon nd nearby areas. Beej bachao andolan was earlier known as Beej bachao abhiyan but was renamed later. Itz main objective was to rejuvenate traditional farming nd agricultural diversity.The aim was to negate d modern but destructive agricultural practices, search nd conserve indigenous seeds nd promote traditional farming.......

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Ganga Action Plan is d public awareness programme concerning conservation of water.
GAP-1 was started in Feb 1985 nd was scheduled to be completed by Mar 1990.
It was scheduled to be completed in 2 phases- Phase 1 nd Phase 2

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1. Biopesticides r pesticides derived frm animals, plants, bacteria, nd
certain minerals. They r usually less toxic than conventional
pesticides. They generally affect only d target pest nd closely
related organisms unlike many chemical pesticides.
For ex. leaves of neem tree, common baking soda , bacterium Bacillus
thuringiensis, etc

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hey guyz...ne1 pls post d definition of salinisation

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soil or water which salinisation?

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SALINISATION is the accumulation of soluble salts of sodium, magnesium and calcium in soil to the extent that soil fertility is severely
reduced.

Salinisation
is the process that leads to an excessive increase of water-soluble
salts in the soil.
The accumulated salts include sodium, potassium, magnesium and calcium,
chloride, sulphate, carbonate and bicarbonate (mainly sodium chloride
and sodium sulphate). A
distinction can be made between primary and secondary salinisation
processes. Primary salinisation involves salt accumulation through
natural processes due to a high salt content of
the parent material or in groundwater. Secondary salinisation is caused
by human interventions such as inappropriate irrigation practices, e.g.
with salt-rich irrigation water
and/or insufficient drainage.

Water Salinization

One of the most conspicuous phenomena of water-quality degradation,
particularly in arid and semi-arid zones, is salinization of water and
soil resources. Salinization is a long-term phenomenon, and during the
last century many aquifers and river basins have become unsuitable for
human consumption owing to high levels of salinity.

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hey..in the Beta book, there are specific names 4 biopesticides r given...bioneem and bio-2001

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yup they are even given in evergreen~

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Prashant got ur answer?

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i donno i hava bad feelin for EVED

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I hv never liked dis subject...but..wat 2 do..

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just learn it .....

thats what everyone do ......

raat lo bhai

can't say anythig else.....

but really this subj. is useless .......

Subject: Re: ENVIRONmental help....... Thu Mar 19, 2009 8:17 am

Salsinaton-Due to heavy watering of agricultural fields through irrigation canals,waterlogging takes place.Hence,salsination takes place where the salt ascends towards the top layer of the soil and gets collected.Excessive accumulation of the salt in the soil converts the fertile land into wasteland.

Subject: Re: ENVIRONmental help....... Thu Mar 19, 2009 8:20 am

whoop...salinisation... Razz

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THNK U GUYZ........

You will NOT be allowed to write during the first 15 minutes.
This time is to be spent in reading the question paper.
The time given at the head of this paper is the time allowed for writing the answer.

Section A 40 marks

Attempt all the questions from section A

QUESTION – 1

1. Give the meaning of the expression. ‘Sustainable use of resources”. 2

2. How does urbanization affect land scape? 2

3. What is water shed? 2

4. What is agro forestry? 2

5. What are corals? How are the coral reefs formed? 2

QUESTION – 2

What are bio pesticides/ (organic pesticides) Give two examples 2
Explain what is bio piracy? 2
What is bio remediation? 2
Write any two components of Ganga action plan. 2
Give the difference between bio-degradable and non-biodegradable pollutions. 2

QUESTION – 3

1. Mention any four sources of soil pollution. 2

2. Write the impact of radiations on the human body? 2

3. What is known as sanitary landfills? 2

4. Why is shifting cultivation not to be encouraged? 2

5. Give two reasons for displacement of people. 2

QUESTION – 4

1. Give two advantages of biogas. 2

2. What is El Nino. How does El Nino bring in climate change? 2

3. Mention any two measures to avoid the impact of landslides. 2

4. Who led the Chipko movement? What does it highlight? 2

5. Give the full form of CITES? What purpose does the CITES serve? 2

Section – B
Attempt any four questions from section B

QUESITON – 5

1. What is rehabilitation? What problems are associated with it? 4

2. Explain ( 1 ) ozone layer depletion ( 2 ) Acid Rain 6

QUESTION – 6

1. What is a disaster? State the difference between a man-made disaster and a natural disaster with examples. 4

2. Write short notes on ( 1 ) forest fires ( 2 ) lumbering 6

QUESITON - 7

1. What is food adulteration? Give two circumstances leading to food adulteration. 4

2. Explain how tribals maintained the ecological balance using indigenous practices. 6

QUESTION – 8

1. Mention any four steps to conserve wild life. 4

2. Explain the self-sustaining system of development undertaken by Anna Hazare with the participation of local community in Allegan Sddhi. 6

QUESTION – 9

1. What is meant by exploitative use of resources? What are the signs of exploitation.4

2. Explain briefly the various Natural factors that lead to spoilage of land scape. 6

QUESITON – 10

1. What are the effects of noise pollution? 4

2. Write short notes on (1) Eutrophication (2) Bio magnification 6

Subject: Re: ENVIRONmental help....... Thu Mar 19, 2009 10:55 am

What is El Nino?..

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]here u go...

El Nino, an abnormal warming of surface ocean waters in the eastern
tropical Pacific, is one part of what's called the Southern
Oscillation.
The Southern Oscillation is the see-saw pattern of reversing surface
air
pressure between the eastern and western tropical Pacific; when the
surface
pressure is high in the eastern tropical Pacific it is low in the
western
tropical Pacific, and vice-versa. Because the ocean warming and
pressure
reversals are, for the most part, simultaneous, scientists call this
phenomenon the El Nino/Southern Oscillation or ENSO for short. South
American fisherman have given this phenomenon the name El Nino, which
is
Spanish for "The Christ Child," because it comes about the
time of the
celebration of the birth of the Christ Child-Christmas. santa

[b]Scientists do not really understand how El Nino forms. It is believed
that El Nino may have contributed to the 1993 Mississippi and 1995
California floods, drought conditions in South America, Africa and
Australia. It is also believed that El Nino contributed to the lack of
serious storms such as hurricanes in the North Atlantic which spared
states like Florida from serious storm related damage. affraid

[b]Unfortunately not all El Nino's are the same nor does the atmosphere
always react in the same way from one El Nino to another. This is
why NASA's Earth scientists continue to take part in international
efforts to understand El Nino events. cherry

Hopefully one day scientists will
[b]be able to provide sufficient warning so that we can be better
prepared to deal with the damages and changes that El Nino causes in
the weather... sunny

Subject: Re: ENVIRONmental help....... Thu Mar 19, 2009 3:45 pm

ok...thanks... Smile

what about 'aqua culture' and man culture?..

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i have no knowledge abt Suspect

dese!

Subject: Re: ENVIRONmental help....... Thu Mar 19, 2009 4:02 pm

same