Unit 5: Environment Quiz

Overpopulation is an undesirable condition where the number of the existing human population exceeds the actual carrying capacity of Earth. What is the current average population increase?

• 9 million people per year

• 15 million people per year

• 43 million people per year

• 81 million people per year

Pollution is everywhere. From the trash thrown out on the freeway, to the millions of metric tons of pollution pumped into the atmosphere every year- it's obvious, pollution and waste are inescapable. How many people do not have access to clean water sources because of pollution?

• 2,400,000

• 24,000,000

• 240,000,000

• 2,400,000,000

Global warming is the current rise in temperature of the air and oceans. It happens because humans burn coal, oil and natural gas, and cut down forests. What is the expected average temperature rise in Belgium by 2100, if no action is taken?

• 0,5 degree Celsius

• 1 degree Celsius

• 5 degrees Celsius

• 9 degrees Celsius

Answer explanation

Greenhouse gases are gases in Earth’s atmosphere that trap heat. They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere. Which of the following is a greenhouse gas?

Tip: more than one correct answer.

• CO2 (Carbon dioxide)

• Water vapor

• CH4 (Methane)

• O3 (Ozone)

True or False:

Wasting less food is a way to reduce greenhouse gas emissions.

• True

• False

Which of the following are consequences associated with climate change?

• The ice sheets are declining, glaciers are in retreat globally, and our oceans are more acidic than ever.

• Surface temperatures are setting new heat records about each year.

• More extreme weather like droughts, heat waves, and hurricanes.

• Global sea levels are rising at an alarmingly fast rate — 17 centimetres in the last century alone and going higher.

What was agreed to in the "Paris Agreement" that came out of the UN Climate Change Conference (COP21), held in Paris in 2015?

• To protect biodiversity and end the deforestation of the world’s rainforests

• To keep global temperature rise well below 2°C pre-industrial levels and to pursue a path to limit warming to 1.5°C

• To limit sea level rise to 91 centimetres above current levels

• To pursue a goal of 100% clean, renewable energy

Which of these countries emits the most carbon dioxide?

• USA

• China

• Russia

• UK

What percentage of the global greenhouse gas emissions does the transportation sector emit?

• 1%

• 14%

• 33%

• 70%

Globally, which of the following economic sectors emits the largest percentage of greenhouse gas emissions?

• Transportation

• Buildings

• Industry

• Electricity and heat production