Vocabulary exercise using the topic of pollution in the ocean from  National Geographic

Plastic pollution poses one of the biggest known threats to the ocean, influencing all ecosystems from beautiful coral reefs to abyssal trenches, eventually accumulating in our own food. 

How Can We Keep Plastics Out Of Our Ocean - NatGeo

how-can-we-keep-plastics-out-of-our-ocean-natgeo

Let's do English ESL deep listening: focus on meaning. Vocabulary exercise using the topic of pollution in the ocean from  National Geographic