SS6G2 Environmental Issues in Latin America

What is air pollution?

• When rain falls in cities

• When harmful substances make the air dirty and dangerous to breathe

• When trees produce oxygen

• When mountains surround a city

Answer explanation

Air pollution occurs when harmful substances contaminate the air, making it unsafe to breathe. This definition clearly aligns with the correct answer choice, distinguishing it from unrelated options.

Which geographic feature makes air pollution worse in Mexico City?

• The Pacific Ocean

• The flat terrain

• The Sierra Madre Mountains

• The desert climate

Answer explanation

The Sierra Madre Mountains surround Mexico City, trapping air pollutants and preventing their dispersion. This topography exacerbates air quality issues, making pollution levels worse in the city.

How do the mountains affect air pollution in Mexico City?

• They create wind tunnels that blow pollution away

• They act like walls that trap pollution in the city

• They produce clean mountain air

• They filter out the pollution naturally

Answer explanation

The mountains surrounding Mexico City act like walls, preventing air pollution from dispersing. This leads to the accumulation of pollutants in the city, worsening air quality.

What is the biggest source of air pollution in Mexico City?

• Cars and buses

• Coal used in factories

• Residential buildings

• Street vendors

Answer explanation

The biggest source of air pollution in Mexico City is coal used in factories, as it releases significant amounts of pollutants into the air, contributing to the city's severe air quality issues.

About how many businesses, industries, and factories operate in or around Mexico City?

• 25,000

• 35,000

• 40,000

• 50,000

Answer explanation

Mexico City is a major economic hub with approximately 50,000 businesses, industries, and factories operating in and around it, making it one of the largest concentrations of economic activity in the region.

How many days per week are people allowed to drive cars in Mexico City?

• Seven days

• Five days

• Four days

• Six days

Answer explanation

In Mexico City, the 'Hoy No Circula' program restricts driving to six days a week based on vehicle license plate numbers, allowing one day of no driving per week. Therefore, the correct answer is six days.

What method does Mexico City use to warn citizens about air quality?

• Radio announcements

• Text messages

• Daily flags

• Telephone calls

Answer explanation

Mexico City uses daily flags to indicate air quality levels. Each flag color corresponds to a specific air quality status, providing a clear visual warning to citizens about pollution levels.

Which solution has the Mexican government NOT implemented to reduce air pollution?

• Public buses

• Bike sharing programs

• Complete ban on vehicles

• New car emission standards

Answer explanation

The Mexican government has not implemented a complete ban on vehicles to reduce air pollution. Instead, they have focused on solutions like public buses, bike sharing programs, and new car emission standards.

What is deforestation?

• Planting new trees

• Clearing a forest for human purposes

• Natural forest fires

• Forest animal migration

Answer explanation

Deforestation refers to clearing a forest for human purposes, such as agriculture or urban development. This process leads to the loss of trees and biodiversity, distinguishing it from planting new trees or natural events.

How is the Amazon Rainforest most commonly cleared?

• By using fire

• By using machines

• By using chemicals

• By using manual labor

Answer explanation

The Amazon Rainforest is most commonly cleared by using fire, a method that allows for quick land clearing but also poses significant environmental risks, including loss of biodiversity and increased carbon emissions.