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Showing 10 out of a total of 140 results for collection: Sunday Observer.
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Breakthrough in low fertilizer cost
Herat, G.
(
1992-06-28
)
Clarifying the economic and environmental aspects of the Kalu Ganga mining project
Karunatilake, H.N.S.
(
1993-12-19
)
Recent progress in urban air clean-up
Wickramasinghe, R.H.
(
1994-09-11
)
People at the top are the real miscreants
Serasinghe, I.
(
1992-04-05
)
Whatever's to be cooked must be washed well
De Mel, B.
(
1992-02-23
)
Mismanagement of the environment cause of drought
Liyanagamage, A.
(
1992-04-19
)
UNDP and world bank - funded metropolitan environment work begins:MEIP hits Colombo
Jayasinghe, R.
(
1991-04-07
)
The ozone layer a protective shield:Nitogen Oxides can split Ozone molecules
Cooray, R.
;
Cooray, V.
(
1999-08-29
)
Research on to draw up conservation management plan
Dela, J.
(
1992-04-05
)
The law is an ass! unhelpful to check air pollution offenders
Welabada, L.
(
1995-09-03
)
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