Which resource does NOT need to be cycled by ecosystems because a continuous, unlimited supply is available?

Solar energy

Explanation:

Solar energy is the resource that doesn’t need to be cycled by ecosystems because a continuous, unlimited supply is available.

The Sun provides the solar energy which is very important in plant’s food production and it isn’t dependent on the ecosystem and seasons. This is because the Sun provides light during the day and we experience daytime all year round. This is why the solar energy has a continuous, unlimited supply.

it is prolly d and c and f

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.