No student devices needed. Know more
7 questions
minerals
pollutants
water
oxygen
2. When is World Water Day celebrated ?
22 April
24 March
24 April
22 March
3. _______ Are present every 50m-60m in a sewerage
Manholes
Openings to water bodies
Treatment Plants
4. ______ carries waste water.
Buckets
Sewers
Sewarage
Manholes
5. The period of ______ was proclaimed as the international decade
for action on ''Water for life''
2005-2015
2000-2010
2010-2020
6. _______ is the transport system that transports sewage.
Sewerage
Excretory system
Sewers
7. Sewage consists
Organic Impurities
Inorganic Impurities
Contaminants
Explore all questions with a free account