Meaning: 'Ubiquitous' refers to something that is found everywhere or is very common.

Wrong options:

• enormous: The word 'enormous' is an adjective meaning very large, which does not fit the context of describing the presence of plastic.
• consisting: The word 'consisting' is a gerund that does not appropriately describe the nature of plastic in this context.
• disposing: The word 'disposing' is a gerund that refers to the act of getting rid of something, which does not describe plastic's presence.
• flees: The word 'flees' is a verb meaning to run away, which does not relate to the context of plastic's presence.

Correct answer: lingers

Explanation: The verb 'lingers' indicates that plastic remains in the environment for an extended period, fitting the context of discussing its impact. It is grammatically correct as it describes the action of plastic after being thrown away.

Meaning: 'Lingers' means to stay in a place longer than necessary, often implying a negative consequence.

Wrong options:

• disposing: The word 'disposing' is a gerund that refers to the act of getting rid of something, which does not fit the context of plastic remaining in the environment.
• flees: The word 'flees' is a verb meaning to run away, which contradicts the idea of plastic remaining in the environment.
• enormous: The word 'enormous' is an adjective meaning very large, which does not fit as it does not describe an action related to plastic.

Correct answer: ingested

Explanation: The verb 'ingested' means to take in food or drink, which fits the context of discussing how microplastics can enter the bodies of animals and people. It is grammatically correct as it describes the action performed by both subjects.

Meaning: 'Ingested' refers to the act of consuming something, particularly food or substances.

Wrong options:

• disposing: The word 'disposing' is a gerund that refers to the act of getting rid of something, which does not fit the context of consumption.
• flees: The word 'flees' is a verb meaning to run away, which does not relate to the act of consuming microplastics.
• enormous: The word 'enormous' is an adjective meaning very large, which does not fit as it does not describe an action related to consumption.

Correct answer: disposing

Explanation: The gerund 'disposing' refers to the act of getting rid of waste properly, which fits the context of discussing actions to help mitigate plastic pollution. It is grammatically correct as it describes an action related to waste management.

Meaning: 'Disposing' means the act of getting rid of something, particularly waste.

Wrong options:

• flees: The word 'flees' is a verb meaning to run away, which does not relate to the context of waste management.
• enormous: The word 'enormous' is an adjective meaning very large, which does not fit as it does not describe an action related to waste.
• consisting: The word 'consisting' is a gerund that does not appropriately describe an action related to waste management.