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Test: Wastewater Management - Class 7 MCQ


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20 Questions MCQ Test Class 7 Oxford Science: Chapter Notes, Worksheets & Tests - Test: Wastewater Management

Test: Wastewater Management for Class 7 2024 is part of Class 7 Oxford Science: Chapter Notes, Worksheets & Tests preparation. The Test: Wastewater Management questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Wastewater Management MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Wastewater Management below.
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Test: Wastewater Management - Question 1

Which of the following is a source of wastewater?

Detailed Solution for Test: Wastewater Management - Question 1

Wastewater is any water that is no longer needed or suitable for its original purpose and is discharged from homes, businesses, industries, or other sources.

Test: Wastewater Management - Question 2

What are the contaminants present in wastewater?

Detailed Solution for Test: Wastewater Management - Question 2

Wastewater can contain a variety of contaminants, including chemicals, fecal matter, bacteria, viruses, and other pathogens.

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Test: Wastewater Management - Question 3

What is eutrophication?

Detailed Solution for Test: Wastewater Management - Question 3

Eutrophication is a natural process that occurs when excessive nutrients, such as nitrogen and phosphorus, are introduced into a body of water, leading to an overgrowth of algae and other aquatic plants. This can deplete the oxygen in the water and harm fish and other aquatic life.

Test: Wastewater Management - Question 4

What is the sewer system?

Detailed Solution for Test: Wastewater Management - Question 4

The sewer system is a network of pipes, pumps, and other infrastructure that collects and transports wastewater from homes, businesses, and other sources to a treatment plant.

Test: Wastewater Management - Question 5

What is primary treatment?

Detailed Solution for Test: Wastewater Management - Question 5

Primary treatment is the first stage of wastewater treatment, in which large objects and debris are removed from the wastewater.

Test: Wastewater Management - Question 6

What is secondary treatment?

Detailed Solution for Test: Wastewater Management - Question 6

Secondary treatment is the second stage of wastewater treatment, in which microorganisms are used to break down organic matter in the wastewater.

Test: Wastewater Management - Question 7

What is tertiary treatment?

Detailed Solution for Test: Wastewater Management - Question 7

Tertiary treatment is the final stage of wastewater treatment, in which remaining contaminants are removed from the wastewater using additional treatment methods such as chemical treatment, filtration, and disinfection.

Test: Wastewater Management - Question 8

How can sewage generation be controlled?

Detailed Solution for Test: Wastewater Management - Question 8

Sewage generation can be controlled by reducing water usage, using water-efficient appliances, and repairing leaks to prevent water wastage.

Test: Wastewater Management - Question 9

What is the Green Corner?

Detailed Solution for Test: Wastewater Management - Question 9

The Green Corner is an area in the community for promoting environmental awareness and encouraging sustainable practices.

Test: Wastewater Management - Question 10

What are alternative methods of sewage disposal?

Detailed Solution for Test: Wastewater Management - Question 10

Alternative methods of sewage disposal include composting toilets, wetlands treatment systems, and greywater reuse systems.

Test: Wastewater Management - Question 11

What are the consequences of improper sewage management?

Detailed Solution for Test: Wastewater Management - Question 11

Improper sewage management can lead to contamination of water sources, spread of diseases, and environmental degradation.

Test: Wastewater Management - Question 12

Why is sanitation important in public places?

Detailed Solution for Test: Wastewater Management - Question 12

Sanitation is important in public places to prevent the spread of diseases and maintain public health.

Test: Wastewater Management - Question 13

What is the purpose of a wastewater treatment plant?

Detailed Solution for Test: Wastewater Management - Question 13

The purpose of a wastewater treatment plant is to remove contaminants from wastewater and make it safe to discharge back into the environment.

Test: Wastewater Management - Question 14

Which of the following is not a stage of wastewater treatment?

Detailed Solution for Test: Wastewater Management - Question 14

Quaternary treatment is not a stage of wastewater treatment.

Test: Wastewater Management - Question 15

What is the role of microorganisms in wastewater treatment?

Detailed Solution for Test: Wastewater Management - Question 15

Microorganisms are used in secondary treatment to break down organic matter in wastewater.

Test: Wastewater Management - Question 16

What is the difference between primary and secondary treatment?

Detailed Solution for Test: Wastewater Management - Question 16

Primary treatment is the first stage of wastewater treatment, in which large objects and debris are removed from the wastewater. Secondary treatment is the second stage of wastewater treatment, in which microorganisms are used to break down organic matter in the wastewater.

Test: Wastewater Management - Question 17

What is the purpose of disinfection in wastewater treatment?

Detailed Solution for Test: Wastewater Management - Question 17

Disinfection is the process of killing pathogens in wastewater to make it safe for discharge back into the environment.

Test: Wastewater Management - Question 18

What is the role of filtration in wastewater treatment?

Detailed Solution for Test: Wastewater Management - Question 18

Filtration is used in tertiary treatment to remove remaining contaminants from the wastewater.

Test: Wastewater Management - Question 19

What is the purpose of the Green Corner in promoting environmental awareness?

Detailed Solution for Test: Wastewater Management - Question 19

The Green Corner is an area in the community for promoting environmental awareness and encouraging sustainable practices.

Test: Wastewater Management - Question 20

What are the benefits of using alternative methods of sewage disposal?

Detailed Solution for Test: Wastewater Management - Question 20

Alternative methods of sewage disposal can result in reduced water usage, reduced environmental impact, and improved public health.

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