ONE WORD
Q- Name the blood vessels, which carry pure blood?
A- Artery
Q- Name
the blood vessels which carry impure blood?
A- Vein
Q- Name of
the artery which carries impure blood?
A- Pulmonary
artery
Q-...
Tuesday, January 28, 2014
Sunday, January 26, 2014
CHAPTER NO-18 WASTER WATER STORY
ONE WORD-
Q- Saline water in sea is called?
A-Marine water
Q- Clean water fit for drinking is called?
A-Potable water
Q- Dirty water containing garbage and human wastes is called?
A-Sewage
Q-fuel obtained from decomposing sludge is called?
A-Biogas
Q- Sewerage system leads from house, hospitals and
industries is send to?
A- Sewage treatment plant.
Q- What is use...
Chapter no- 9 SOIL
One word
Q- What does
the natural process of soil formation from rocks called?
A - Weathering
Q-
Decomposed matter formed by the decay of biodegradable matter by microorganisms
is called?
A-
Humus
Q- Water held
by soil particles is called?
A-
Capillary
water
Q-Mixture
of...
INTRO
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