Comprehension

Read the following passage and answer the questions:

Sustainable textiles are centred around manufacturers switching to organic cotton or making textiles from natural, easily renewable materials such as bamboo or hemp. But little attention has been paid to the dyeing process, which can be a potentially destructive industry in terms of chemicals, waste and water use. 4000 years ago humans first used water to carry colour to a piece of cloth. Initial water pollution began. Since then, more and more chemicals have been added to dye textiles, leading to the current worsening water pollution. Today the World Bank estimates that 17-20% of industrial pollution is caused by the dyeing and treatment of textiles. They have also identified 72 toxic chemicals in our waters that are caused solely by the dyeing of textiles, 30 of these are persistent.

Traditional dyeing can use 7 to 75 gallons of water per pound of fabric to dye just one piece of fabric.

Air Dye technology from California-based Sustainable Technologies is the solution our planet needs today. Air Dye technology prints and dyes without consuming water or emitting pollutants. By using air instead of water to dye fabrics, this technology reduces water consumption and pollution.

How many permanent toxic chemicals are identified by the World Bank?

  1. 72
  2. 30
  3. 55
  4. 75

Answer (Detailed Solution Below)

Option 2 : 30

Detailed Solution

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The World Bank has identified 30 permanent toxic chemicals that pose significant risks to human health and the environment. These chemicals are known for their persistence in the environment, their ability to bioaccumulate in living organisms, and their potential to cause adverse health effects. Efforts to regulate and mitigate the impact of these toxic substances have become a global priority. The identification and management of these chemicals are crucial for safeguarding public health and promoting sustainable development. Addressing the challenges posed by these toxic chemicals requires international cooperation and stringent regulatory frameworks to ensure effective control and reduction of their presence in the environment.
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