Waste generation and classification of wastes - class-VIII
Description: waste generation and classification of wastes | |
Number of Questions: 37 | |
Created by: Jatin Goyal | |
Tags: waste generation and management diseases and immunity wastewater story biology minerals and mining social science waste water story waste management let's regain our fields cleanliness and hygiene waste and its management our environment waste products |
Select the correct statement out of the following.
The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is
Waste of water can be minimised by
Which of the following consequences is due to the over exploitation of natural resources by man?
Methods of waste management includes:
Human and animal excreta and sullage is known as
Waste is said to be
How can you define waste?
Proper management of natural resources ensures
Waste are of two types, biodegradable and non-biodegradable.
Settle out portion of 'sewage' is known as
Solid waste is also known as:
Organisms which breakdown dead or waste matter in to simpler substances is termed as
Waste must be separated into ________ and _______.
A lake with an inflow of domestic sewage rich in organic waste may result in
The amount of biodegradable organic matter in sewage water can be estimated by measuring
Phosphate pollution is brought about by
Which of the following is referred to as the world's most problematic aquatic weed ?
______ is a water-carried waste, in solution or suspension, that is intended to be removed from a community.
Most of organic matter present in sewage is
Industrial, municipal sewage, treatment plants are examples of
Low 'pH' of a sewage indicates its
Which bacteria flourish in absence of free dissolved oxygen in sewage?
Which solids remain floating in sewage?
'Turbidity' in sewage is caused by
'turbidity' increases as long as sewage becomes
The liquid waste which has dissolved and suspended impurities is
Why is it necessary to set up the sewage treatment plants?
In domestic sewage, suspended solids, colloidal and dissolved materials constitute
The Residential and Commercial wastes mainly consist of:
Which one is both osmoregulator as well as nitrogenous waste ?
Solids which remain dissolved in sewage is known as
Which is the most common source of eutrophication?
Find the odd one out:
I. Sewage water treatment plants are setup for controlling water pollution.
II. BOD level increases after sewage treatment.
______ is the most dangerous soil contaminant.
Wastewater released from home, industries, hospitals is called as