Answer:
Paul Snelgrove states that oceans contribute significantly to, not *only* sustaining life on Earth, but they are play a crucial part in nutrient cycling, food, and oxygen, and also influence the weather. As it is all connected, without oceans, there is no life.
Step-by-step explanation:
The biological diversity that the planet's oceans host are crucial for life on Earth as it provides immense benefits to humans. Dr. Paul Snelgrove states that these bodies of water sustain this biodiversity, enhance fisheries, protect and conserve habitats, amongst an innumerable amount of benefits.
From seafloor environments to the pelagic sea, every habitat and each species of the ocean play an essential role and a wide range of functions in the mainteinance of a healthy and sustainable planet.
According to Dr. Snelgrove, without thorough global management, human activities that affect biodiversity will not only affect the most vulnerable human populations and marine habitats, but will have a strong, negative impact on health, hygiene, food security, and economy.