The importance of April 22
World Water Day
World Forest Day
Earth Day
World Ocean Day
Soil conservation measures the mainly aimed at protecting which of the following
Plants
Top-soil
Sub-soil
Soil organisms
Study on soil
Ecology
Pedology
Geology
Animology
World soil day is on
June 5
July 5
November 5
December 5
Which among the following causes acid rain?
Oxides of sulphur
Oxides of nitrogen
Oxides of both sulphur and nitrogen
None of these
Which among the following is not a fossil fuel?
Petroleum
Coal
Biogass
Natural gas
Hydrogen peroxide is poured on the ingrown nail
to disinfect germs
to reduce pain
for recovery of he disease
to remove dirt
Which of the following methods is not suitable to sterilize water?
Decantation
boiling
Adding bleaching powder
Adding potassium permanganate
Among the following which is not a method of purifying water?
Sedimentation
Filtration
Distillation
cooling
