In higher latitudes where lakes freeze over in winter, how do cool fall temperatures help fish make it through the winter? The cooling water slows fish metabolisms down and allows them to go into hibernation in winter.
Water from the bottom of the lake raises and provides oxygen to the cooler waters on the surface.
Cool water at the surface traps nutrients deep in the lake to provide food during the winter.
The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels.

golgi body just took the test on edge

what in the weirdo : o

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.

the answer is c a tornado