Microplastic class quiz

What is the main material used to make plastic?

• Wood

• Crude oil

• Glass

• Metal

What are microplastics defined as in terms of size?

• Exactly 2 micrometers

• Less than 1 millimeter

• More than 10 millimeters

• Between 5 millimeters and 1 micrometer

What is the biggest cause of microplastics according to the text?

• Wearing down of car tires

• Industrial pollution

• Deforestation

• Burning plastic waste

What are small plastic pellets in the industry known as?

• Secondary microplastics

• Nano plastics

• Primary microplastics

• Biodegradable plastics

What is the main issue with microplastics in terms of biodegradability?

• They do not biodegrade naturally

• They are naturally biodegradable

• They degrade quickly

• They turn into compost

How do microplastics enter our water bodies according to the text?

• Through underground rivers

• Through sewage systems

• Through human consumption

• Through volcanic eruptions

What is the main suggestion given in the text to reduce plastic usage?

• Use more plastic bags

• Recycle plastic waste

• Increase plastic production

• Dump plastic in nature