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Understanding Pollution

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Questions and Answers

What is pollution?

The promotion of a healthy ecosystem

The enhancement of nature and human health

The introduction of harmful substances into the environment (correct)

The removal of contaminants from the environment

Where can contaminants be found in the environment?

Exclusively in the oceans

Only in the air

In water, air, or land (correct)

Only in the land

What are some sources of water contamination in Canada?

Mainly due to acid rain

Solely from inadequate water treatment plants

Exclusively natural erosion and sedimentation

Primarily from municipal discharge and industry (correct)

How much inadequately treated wastewater is dumped in Canada annually?

Over 150 billion liters Signup and view all the answers

What was a recent example of water pollution in Canada mentioned in the text?

200,000 liters of tar sand crude oil spilled in 2016 Signup and view all the answers

How did the oil spill in Canada affect the local population?

It caused devastation to wildlife and contaminated drinking water Signup and view all the answers

Why are people on the North American continent affected by pollution?

Since they depend on water, air, and land for survival Signup and view all the answers

What is one example of industry polluting Canada's water resources mentioned in the text?

A smelting plant in Ontario Signup and view all the answers

How does Canada try to prevent pollution in the first place according to the text?

By regulating substances used in industries and designing products with limited environmental impact Signup and view all the answers

What are some human-based sources of air pollution mentioned in the text?

Automobiles and power plants Signup and view all the answers

How did the U.S. try to manage air pollution according to the text?

By promoting the development of cleaner alternative energy sources like wind and solar Signup and view all the answers

What is mentioned as a source of land pollution in Mexico?

Construction and demolition waste Signup and view all the answers

What was Mexico's approach to controlling land pollution mentioned in the text?

Closing dangerous industries or land pollution sites and turning them into environmentally friendly alternatives Signup and view all the answers

'How can countries help control land pollution from sites like landfills?' According to the text, what is one strategy they can use?

Implement policies to close dangerous industries or sites and convert them into environmentally friendly alternatives Signup and view all the answers

'What did Mexico aim to achieve by closing one of the world's largest landfills in 2011?' According to the text, what was their goal?

To replace it with a recycling plant to minimize waste and produce energy from methane Signup and view all the answers