1.
The biotic factor which spoils the food item is
a) drying
b) temperature
c) humidity d) bacteria
water is free from suspended impurities
a) sea
b) well
c) underground
d) river
of water is in oceans and seas
a) 97%
b) 87%
c) 47%
d)77%
Male reproductive organ of the flower is
a) sepal
b) petal
c) androceium
d)gynoceium
Pollination by wind is also known as
a) anemophily
b) hydrophily
c) entamophily d) ornithoph
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