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WorksheetsEMST MIDTERM REVIEWER
Total questions: 46
Worksheet time: 33mins
is the degradation of the earth’s surface as a result of human activity and their misuse of land resources
Land Pollution
Water Pollution
Land Degradation
Water Degradation
These include all the various kinds of rubbish we make at home, school, hospitals, market and workplaces. Things like paper, plastic and broken electronic goods, broken furniture and hospital waste are all examples of?
Pesticides and Fertilizers
Chemicals
Deforestation
Solid Waste
These includes waste matter produced by crop, animal manure, and farm residues.
Mining Activities
Farm Activities
Agriculture Activities
Animal Activities
Include a lot of human actions, like deforestation, overuse of pesticides and chemical fertilizers, desertification, mining, inefficient and or inadequate waste treatment, landfill, litter, etc.
(a)
These include waste like debris, wood, metals and plastics that are produced from construction activities
(a)
Mainly refers to cutting trees to clear land for agriculture, as well as processes like desertification and land conversion.
(a)
amounts to wastage, and hence shortage of land; and it is precisely during such conditions that man has to resort to measure such as deforestation and others to meet his needs
(a)
Species are pushed towards endangerment and extinction primarily by two processes.
(a)
This decomposed waste should be further dumped in pits so that it can be converted into compost and used for agriculture.
(a)
Initiative should be taken to grow more trees.
(a)
Used in single dwellings and small clusters of dwellings.
(a)
Used for pretreated municipal effluents
Leachfields
Mound Systems
land disposal systems
seepage pits
Used for final treatment and discharge of wastewater on vegetated plots.
(a)
The most common method for controlling gaseous pollutants is the addition of add-on control devices to recover or destroy a pollutant.
(a)
The removal of one or more selected components from a gas mixture
Adsorption
Absorption
Incineration
Condensation
is a process in which a gaseous pollutant is dissolved in a liquid.
Adsorption
Absorption
Incineration
Condensation
The use of a solid agent (adsorbent) with an active surface for the adhesion of gaseous pollutants
Adsorption
Absorption
Incineration
Condensation
are often referred to as scrubbers, and there are various types of absorption equipment
Adsorper
Absorbers
Incinerators
Condensators
The molecules that disappear from the gas either enter the inside of the solid __________ or remain on the outside attached to the surface __________
(a)
is the universal standard for purification and removal of trace organic contaminants from liquid and vapor streams
(a)
is the process of converting a gas or vapor to liquid. Any gas can be reduced to a liquid by lowering its temperature and/or increasing its pressure.
Adsorption
Absorption
Incineration
Condensation
used to control the emissions of organic compounds from process industries
Adsorption
Absorption
Incineration
Condensation
A device in which air and all the combustible waste gases react at the burner.
Direct combustor
Thermal incinerators
Catalytic incinerators
The combustible waste gases pass over or around a burner flame into a residence chamber where oxidation of the waste gases is completed.
Direct combustor
Thermal incinerators
Catalytic incinerators
A very similar to thermal incinerators. The main difference is that after passing through the flame area, the gasses pass over a catalyst bed.
Direct combustor
Thermal incinerators
Catalytic incinerators
The gas stream moves in a continuous spiral motion
(a)
Reduces gas velocity in order to allow settling of particulate matter.
centrifugal/cyclone collectors
gravity settling chambers
scrubbers/wet collectors
electrostatic precipitator
air filters
Gas liquid contacting device in which airborne particulates are transferred from suspension in the gaseous phase to a liquid phase suspension or solution.
centrifugal/cyclone collectors
gravity settling chambers
scrubbers/wet collectors
electrostatic precipitator
air filters
Involves the use of an electric field to remove electrically charged particles from the gaseous media.
centrifugal/cyclone collectors
gravity settling chambers
scrubbers/wet collectors
electrostatic precipitator
air filters
Porous structure which strains out the particulate matter from a gas stream passing through it. Cloth or paper filters usually arranged as bags are used for filtering.
centrifugal/cyclone collectors
gravity settling chambers
scrubbers/wet collectors
electrostatic precipitator
air filters
It is non liquid, non-soluble materials ranging from municipal garbage to industrial wastes that contain complex and sometimes hazardous substances
(a)
Consists of household waste, construction and demolition debris, sanitation residue, waste from streets
Municipal solid waste
Industrial waste
Biomedical waste
Industrial and hospital waste is considered hazardous as they may contain toxic substances
Non-hazardous waste
Hazardous waste
Biomedical waste
If solid waste are not collected and allowed to accumulate, they may create unsanitary conditions
Health hazards
Environmental impacts
None of d above
If the solid wastes are not treated properly decomposition and putrefaction (decay) may take place.
Health hazards
Environmental impacts
None of d above
Recovery of one tone paper can save 17 trees
Reduce
Reuse
Recycle
Instead of buying new containers from the market, use the ones that are in the house
Reduce
Reuse
Recycle
Use shopping bags made of cloth or jute which can be used over and over
Reduce
Reuse
Recycle
a principle where the polluting party pays for the impact caused to the environment.
Waste principle
waste hierarchy
polluter pays principle
polluter pays hierarchy
involves activities associated with waste management until the waste is placed in storage containers for collection. Handling also encompasses the movement of loaded containers to the point of collection.
(a)
Refused is compacted and covered with excavated earth
trench method
ramp method
area method
Method of combined disposal of refuse and night soil/sludge
(a)
The garbage, cattle dung, straw, and leaves should be dumped into the manure pits and covered with earth.
(a)
When the level is the trench is 40cm from ground level, the trench is filled with earth and compacted
(a)
Modified sanitary land fill-where compaction and covering are accomplished once or twice a week
(a)
the waste hierarchy refers to the “3Rs” reduce and recycle, which classify waste management strategies according to their desirability in terms of waste minimization. The waste hierarchy remains the cornerstone of most waste minimization strategies.
Waste principle
waste hierarchy
polluter pays principle
polluter pays hierarchy
