What do you know about Microplastics?

What is happening ​when water reacts with chemicals in the plastic to break connections inside?

• Hydrolytic degradation
• Thermo-oxidative degradation
• Mechanical degradation
• Mineralisation
• Photodegradation

How many years does it take plastic to decompose?

• 10-20 years

• 100-600 years

• 40-200 years

• 20-500 years

Select the true statements

• Decompose means getting smaller and smaller
• Plastic cannot decompose
• Different types of plastic take different amounts of time to decompose

• Decompose means to dissapear

What is happening ​when heat breaks down connections between chemicals in the plastic?

• Mechanical degradation
• Mineralisation
• Photodegradation
• Biodegradation
• Thermo-oxidative degradation

Which size of plastic is biggest?

• Nano

• Meso

• Macro

• Micro

What is happening ​when sunlight breaks down plastic into smaller pieces?

• Thermo-oxidative degradation
• Mechanical degradation
• Mineralisation
• Photodegradation
• Biodegradation

What size are microplastics ?

• Bigger than 5mm

• Smaller than 5cm

• Smaller than 5mm

• Bigger than 5cm

Which type of plastic is smaller than microplastic?

• Meso

• Mega

• Nano

• Macro

What is happening ​in the final process of breaking down plastic into its smallest parts?

• Thermo-oxidative degradation
• Mechanical degradation
• Photodegradation
• Biodegradation
• Mineralisation

What is happening ​when algae and microorganisms attach to small pieces of plastic and break them down?

• Thermo-oxidative degradation
• Mechanical degradation
• Mineralisation
• Biodegradation