Environmental Sciences Mcqs

 

What is solid waste ?

A) Mud
B) Sand
C) dust
D) All of these

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

what goes into the last stage of wastewater treatment ?

A) BOD
B) Chlorination
C) Sedimentation
D) None of these

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Sewage tertiary treatment is also referred to as ?

A) Advance Treatment
B) Preliminary Treatment
C) Secondary Treatment
D) None of these

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

which organisms can breathe without oxygen ?

A) Facultative Anaerobe
B) Bacteria
C) Obligate Aerobe
D) None of these

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Proteins, amines, and urea are the main sources of nitrogen compounds in waste water ?

A) Urea
B) Fats
C) Calcium
D) None of these

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

It is the main source of urea's nitrogenous matter of ?

A) Phosphorous
B) Protein
C) Calcium
D) None of these

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Dioxins and PCBs: What causes them ?

A) Heart disease
B) Cancer
C) Lung disease
D) Skin infection

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

sources that cannot be identified by their locations ?

A) Stationary Sources
B) Diffused Sources
C) Point Sources
D) All of above

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

"fixed" solids refer to ?

A) Inorganic Solids
B) Colloidal Solids
C) Suspended solids
D) All of above

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Dust allows radionuclides to enter the human body, and ?

A) Food
B) Aerosols
C) Drinks
D) All of above

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

How much solid waste is generated daily in American cities ?

A) 8 lac tons
B) 7 lac tons
C) 9 lac tons
D) All of above

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Using clinkers as aggregate in concrete and ?

A) Road Materials
B) Furnitures
C) Farms
D) All of above

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

How many techniques are used in composing ?

A) Two
B) Three
C) Four
D) All of above

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

What is solid waste ?

A) Municipal waste
B) Biomedical Waste
C) Demolition Waste
D) All of above

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

Which way of disposing of solid waste is considered to be hygienic ?

A) Incineration
B) Landfilling
C) Pulverization
D) Composition

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Animal skin is utilized in the creation of ?

A) Waste
B) Food
C) Leather
D) Medicines

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Metals, glass, and aluminum cans are included in ?

A) Non-combustible Rubbish
B) Combustible Rubbish
C) Garbage
D) Natural resource

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Which solid waste disposal technique is straightforward and affordable ?

A) Landfilling method
B) Incineration method
C) Compositing method
D) Pyrolysis method

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

The first essential role of is "collection" ?

A) Solid waste management
B) Solid waste disposal
C) Environmental Management
D) All of above

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Using trenches is also useful for ?

A) Incineration
B) Landfilling
C) Compositing
D) Pulverization

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

sources of radiation include industrial, nuclear, medical, and research facilities ?

A) Hazardous Waste
B) Industrial Waste
C) Municipal Waste
D) Solid waste

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Common sources of municipal trash include homes, businesses, and ?

A) Manure
B) Kitchen Waste
C) Open area waste
D) Farms

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Waste management techniques include ?

A) Dumping Method
B) Recycling Method
C) Collection and Transportation Method
D) All of above

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Solid waste volume in compositing is ?

A) Reduced
B) Enhanced
C) Burnt
D) Removed

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Solid waste burning is also known as ?

A) Landfillings
B) Incineration
C) Pyrolysis
D) Composition

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Weeds classified as "aquatic" can be used and transformed into ?

A) Ethanol
B) Fertilizers
C) Leather
D) Solid waste

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Air pollution from noxious fumes caused by burning ?

A) Food Waste
B) Waste products
C) Animal Manure
D) Plants Waste

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Which approach is utilized if there are no acceptable disposal areas ?

A) Incineration
B) Compositing
C) Pulverization
D) Disposal into the Sea

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

'Sulphates' from the environment are consumed by bacteria that love sulfur ?

A) Agricultural waste
B) Food Waste
C) Tyre Wastes
D) Cellulose Waste

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

"Sugarcane bagasse" is one of the main sources of ?

A) Cellulose
B) Proteins
C) Minerals
D) Rocks

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Construction debris, toxic waste, garbage, and ashes are all ?

A) Municipal Waste
B) Industrial Waste
C) Kitchen Waste
D) Hazardous Waste

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Which second essential role does solid waste management play ?

A) Collection
B) Processing
C) Disposal
D) Manual Disposal

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

What is the byproduct of burning ?

A) Fire
B) Ashes
C) Soil
D) Solid waste

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Excreta from humans and animals are referred to as ?

A) Food Waste
B) Solid Waste
C) Animal Waste
D) Plant Waste

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Which compositing needs a lot of space ?

A) Manual Compositing
B) Machanical Compositing
C) Open Window Compositing
D) Trenching

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Which method of disposing of solid waste is less expensive and easier ?

A) Pulverization
B) Compositing
C) Sanitary Landfilling
D) Incineration

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Which technique of garbage disposal makes use of huge, low-lying waste areas ?

A) Pulverization
B) Clothing
C) Incineration
D) Landfilling

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

Fly ash from a coal-fired power plant, used in ?

A) Steel Formation
B) Clothing
C) Building bricks
D) Animal Waste

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Which solid waste disposal technique can't be utilized regularly ?

A) Compositing
B) Landfilling
C) Pulverization
D) Sea Disposal

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

Utilizing waste can help with energy conservation ?

A) Deforestation
B) Eutrophication
C) Urbanization
D) Natural Resources

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

Blood from'slaugterhouses' is utilized in ?

A) Human Food Application
B) Phermacautical companies
C) Sausages
D) All of above

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

Organic waste that has spoiled is included in ?

A) Combustible Waste
B) Non Combustible Rubbish
C) Rubbish
D) Garbage

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

Which way of disposing of solid waste is appropriate for Indian conditions ?

A) Landfillings
B) Incineration
C) Pulverization
D) Composition

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

Which method involves a big upfront investment ?

A) Landfillings
B) Compositing
C) Incineration
D) Omnivores

ANSWER= (C)
Explain:- (By Keymcqs team) The correct Ans is (C)

 

People are categorized as ?

A) Manure
B) Carnivores
C) Herbivores
D) Omnivores

ANSWER= (D)
Explain:- (By Keymcqs team) The correct Ans is (D)

 

What is a heterotrophic example ?

A) Animals
B) Plants
C) Producers
D) None of these

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Decomposers are also referred as ?

A) Carnivores
B) Saprotrophs
C) Carnivores
D) None of these

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Which parts are interrelated and made up of multiple species populations ?

A) Abiotic elements
B) Biotic elements
C) Inorganic
D) None of these

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)

 

Autotrophic component members include ?

A) Producers
B) Consumers
C) Heterotrophic
D) Decomposers

ANSWER= (A)
Explain:- (By Keymcqs team) The correct Ans is (A)

 

Which heterotrophs consume organic substances, dead animals and plants ?

A) Omnivores
B) Saprotrophs
C) Herbivores
D) None of these

ANSWER= (B)
Explain:- (By Keymcqs team) The correct Ans is (B)