C. B. Gupta solutions for कमर्शियल ॲप्लीकेशन [इंग्रजी] इयत्ता ९ आयसीएसई chapter 16 - Industrial Pollution and Degradation of Environment [Latest edition]

______ is an undesirable change in the physical, chemical or biological characteristics of our air, land and water that may harmfully affect human lives or other species.

Industrial pollution accelerated rapidly due to ______.

Statement I: Solid and liquid wastes of industries are dumped over the surface of soil.

Statement II: Major cause of air pollution is the smoke produced by the burning of coal and mineral oil.

______ is strictly prohibited for waste disposal.

______ is a special form of physical pollution of air, water and soil due to the presence of radioactive materials.

In this process, purification is carried out by aerobes in the presence of molecular oxygen.

Treatment through sand and pressure filters, iron removal and deflourination are examples of chemical treatment.

Which of the following is the most harmful pollutant released by coal-burning industries?

Which technique reduces vehicle emissions most effectively?

A factory produces excessive noise due to heavy machinery, disturbing nearby residential areas. Which measure can best reduce this type of pollution?

Pesticides can contaminate both soil and water resources.

What is the key cause of ozone layer depletion?

Farmers in a region notice an increase in algae growth in local ponds after heavy rainfall. What is the likely cause of this phenomenon?

Global warming is caused by the depletion of the ozone layer.

A hospital improperly disposes of infectious waste, leading to contamination of nearby soil and water sources. Which color-coded bag should this waste have been disposed of in?

What is pollution?

What do you mean by the term ‘industrial pollution’?

What are the various techniques to control water pollution?

Write four technological strategies to reduce air pollution.

How radioactive pollution is caused?

Differentiate between absorption and adsorption techniques to control gaseous contaminants.

What is eco-friendly industrial development?

Give examples of eco-friendly industrial development.

What do you mean by environmental degradation?

Explain various forms of degradation due to industrial pollution.

What are the various sources of air pollution? Explain any three.

How can air pollution be abated?

What is the main strategy involved in air pollution abatement?

Plan an educational trip to the Central Pollution Control Board. Meet the Director there and collect information about the following:

• Types of pollutants generated in India
• Quantity of pollutants in each category
• Steps for abatement of pollution in each category
  , Air, Water, Soil
• Role of persons for abatement of pollution.
• Prepare a report and submit it to your E.E. teacher. Along with this, make a poster related to the report.

What do you understand by offshore oil drilling as a source of pollution?

State some of the examples of eco-industrial development.

“Pesticides contaminate the soil and kill the beneficial insects.” Explain.

How do chemical fertilizers contribute to both agricultural growth and environmental pollution?

Analyse the relationship between greenhouse gases and global warming.